It's the Sunken Temple in the Swamp of Sorrows.

As far as I know, there's 2 Horde Quest, 2 Alliance Quest, and 5 Quests for both factions in this place.

"Into the Temple of Atal'Hakkar" (A) - Brohann Caskbelly - Stormwind
This quest is nested, and the series starts with "In Search of the Temple" from Brohann Caskbelly.

"The Temple of Atal'Hakkar" (H) - Fel'Zerul - Stonard
This quest is nested, and the series starts with "Pool of Tears" from Fel'Zerul.

"Zapper Fuel" (H) - Liv Rizzlefix - Ratchet
This quest is nested, and the series starts with "Larion and Muigin" from Larion in Un'Goro Crater.

"Haze of Evil" (A) - Gregan Brewspewer - Feralas
This quest is nested, and the series starts with "Muigin and Larion" from Muigin in Un'Goro Crater.

"Into the Depths" & "Secret of the Circle" (B) - Marvon Rivetseeker - Tanaris
Both quests are nested with the same pre-requsites.  Horde begins this series with "The Sunken Temple" from Witch Doctor Uzer'i in Feralas.  Alliance begins this series with "The Sunken Temple" from Angelas Moonbreeze in Feralas.

"The Essence of Eranikus" (B) - Eranikus
Started from an item drop after killing Eranikus.

"The God Hakkar" (B) - Yeh'kinya - Steamwheedle Port
This series is started with "Screecher Spirits" from Yeh'kinya.

"Jammal'an The Prophet" (B) - Atal'ai Exile - Hinterlands
I don't think there's any pre-reqs for this quest.

"Official" quest link:

http://www.thottbot.com/?f=q&cat=Sunken%20Temple

here is the real quest list:
http://www.thottbot.com/?f=q&cat=Sunken%20Temple

The Temple of Atal'Hakkar


ALLIANCE


(50) Into the Temple of Atal'Hakkar
(51) Secret of the Circle
(51) Into the Depths
(53) The God Hakkar
(55) The Essence of Eranikus

(50) Into the Temple of Atal'Hakkar

First you have to complete the following chain of quests:

1.(43) In Search of the Temple
2.(43) To the Hinterlands
3.(43) Gryphon Master Talonaxe
4.(43) Rhapsody Shindigger
5.(43) Rhapsody's Kalimdor Koktail
6.(43) Rhapsody's Tale

(43) In Search of the Temple:       
You get this quest from Brohamm Caskbelly in Stormwind's Dwarven District inside a tavern (64,20). Easy quest, just head to Swamp of Sorrows and get close enough to Sunken Temple. After that, return back to Brohamm Caskbelly.

(43) To the Hinterlands:
Again pretty easy quest, just get to the Hinterlands and talk to Falstad Wildhammer in Dwarven Quater (64,21).

(43) Into the Depths:
Oh God... Well, this q seems to be really „hard“. Just talk to Gryphon Master Talonaxe.

(43) Rhapsody Shindigger:
The entrance to the location where Rhapsody Shindigger is 22,47. And again, just talk to the guy.

(43) Rhapsody's Kalimdor Koktail:
This quest requires little bit of travelling. First head to Tanaris to get 3x Roc Gizzard, they are located south of Gadgedzan and lvl 43-45. After that head to Ferelas and kill some of those bears they are lvl range 41-50 to get 3x Ironfur Livers. The last item you need is 3x Groddoc Liver and you can get them from apes, lvl around 44. When you will return this quest, he will give you (43) Rhapsody's Tale.

(43) Rhapsody's Tale:
You will recieve Atal'ai Tablet Fragment which you will deliver to Brohamm Cakbelly thus returning to where it all begun. After you will talk to him, he will give you finally (50) Into the Temple of Atal'Hakkar.

(50) Into the Temple of Atal'Hakkar
Easy quest, just search for tablets in ruins around Sunken Temple. You do not even have to go to the instance to complete this quest. Then head back and collect your reward.



(51) Secret of the Circle
(51) Into the Depths

First you have to complete the following chain of quests:

1.(51) The Sunken Temple
2.(51) The Stone Circle

(51) The Sunken Temple:
This quest is given to you by Angelas Moonbreeze in Feathermoon Stronghold (Feralas) – 32,46. She will send you to find Marvon Rivetseeker in Tanaris. Easy to find him, he is located near Broken Pillars in Tanaris (52,46).

(51) The Stone Circle:
This one pretty easy too... Just travel to Ratchet and retrieve the stone from a little chest located in front of one tent (62,38). Just get the stone and head back to Marvon. After you will give him the stone, he will give you (51) Secret of the Circle and (51) Into the Depths.

(51) Secret of the Circle:
When you first enter the instance, there are four direction to take.
1.I recommend to take the rightmost path down the stairwell and clear out the enemies in the pit. It will make it easeier for you after you activate the statues and mini boos spawns there.
2.Go back and take second path from the right.
3.When you come to the stairwells, take the stairwell down. You will be in a circle area where the balconies are.
4.Activate the statues in a correct order:

a) South
b) North
c) Southwest
d) Southeast
e) Northwest
f) Northeast

A lvl 50 mini boss will spawn in a pit below you (pit you already cleared). Jump down and kill him.

5.Click on a giant snake statue in the middle to complete the quest and collect three rewards.

(51) Into the Depths:
You complete this q along with (51) Secret of the Circle, so there is really nothing more to say : )

(53) The God Hakkar

First you have to complete the following chain of quests:

1.(44) Screecher Spirits
2.(47) The Prophecy of Mosh'aru
3.(50) The Ancient Egg
4.(53) The God Hakkar

(44) Screecher Spirits:
This first quest is from Yeh'kynia in Tanaris near Steamwheedle Port. Easy quest, just go to Feralas and use Yeh'kinya's Bramble on any Screecher you kill. They are lvls around 44. If I rember correctly, I found them just south of High Wilderness. Use the Bramble on on death bodies and then talk to the spirit.

(47) The Prophecy of Mosh'aru:
This is an elite quest in Zul'Farrak. If you do not feel the urge to do full Zul'Farrak run, just ask some high lvl friends to go with you and kill those two mobs. First one is from Theka the Martyr (he is in a section with bunch of scarabs) and the secon one is form Hydromancer Velratha (near the little pool where you summon Gahz'rilla).

(50) The Ancient Egg:
This elite quest is pretty tough. I read that some people were able to solo it, but I do not like the idea of dying severat times just to get closer and closer to the Egg itself. It is an option for some of you, or just ask someone to help you with it. Grab the Egg and return back to Yeh'kinya. After this one, she will give you (53) The God Hakkar.

(53) The God Hakkar
You have to enter the Temple and get to the little room where four flames in corners are. Use the Egg and kill everythin as fast as possible. Use the blood from snakes to put out the four fires. And then... well.. just kill the boss : ). It is endurance fight so be prepared for that...

(55) The Essence of Eranikus

You will get this quest inside the instance after you have killed Avatar of Hakkar. In order to complete this quest you have to combine Oathstone of Ysera's Dragonflight and Chained Essence of Eranikus. The Chained Essence will be lost after that so I did not finish this quest and kept the trinket... Thi short chain of quests ends in Winterespring, you will get some experience but I do not think that it is that worthed.


Well, that is probably all, hope that it is going to help you.

--------------------------------------------

Polesny - Hunter lvl 60 (Drak'Thul)
Xant - Warlock lvl 50 (Drak'Thul)
Ebonita - Druid lvl 24 (Drak'Thul)

I have been leading runs and exploring Sunken Temple for over a year, we have it down to a 2(roughly) hour run killing 100% of everything including snakes level 1 as we run through.

1). all feather mobs need......no MUST be killed to open green force shield for Jammal's lair
2). ALL statues must be turned on with green aura to SPAWN boss and activate the gaint Snake statue
3). Hakkar can be summoned from a reuseable scroll found in Tarnasis along the beach to the EAST with a troll shaman and some venders near Gantazian they also give 40ish quests to both Horde & Allaince, the 4 Burning plates must have the flying mobs blood thrown on it ......when all 4 flames are out then Hakkar spawns.....(easy kill nice loot)
4) ALL dragons, dragon kins and anything else up that Earrkus level MUST be killed or when u start in on Earrkus they will join the battle and it will be a wipe
5) Morphaiz and his pall once killed will summon 2 more dragons out in the big circle room you can pull single and at yer leasure....Dreamweave and soemthing else. For Morhpaiz kill the lower level first......he is easier and drops faster than his big brother. depending on group level may have to 1/2 way through little ones fight put a pet or off tank bigger one to keep off healer....do not need to go toe to toe can reverse kite mean hit hit a little and have the off tank run around in large healing range circles till smaller dragon is down............saves lives & mana.

I will not give directions as to this hall or travel this way but will give advice.

FEATHER MOBS
There is a hallway that has the NPC's that drop the feathers this is the first area we hit.......to work on marking and team work. its a little confusings as you circle around and run down the steps to get to each one but these guys go down easily. u cirlce a ring and to the left as you circle the circle will be steps run down kill the small room of mobs then normally hang left to feather boss balcony. These Balcony boss keep Jammal's sheild in place kill them shield drops & u will know when the shield is down because there will be some texting that claims it is so.

STATUES
The area that seems to confuse most is the Statues. the best way to do this area is to go and clear out the hallway and each balcony mob as u go. As your clearing try to turn on each statue by the time to clear the whole hallway and all the balcony's you'll have 1 or 2 statues turned on. Send each party member to the statues that are not turned on and have them start clicking. THERE IS NO I repeat NO PENALITY for turning them on or trying to. there is a order but it is all AUTO meaning whoever is next with their statue that is the one that will turn on until each one is on...........none of that NE SW SE crap do it this way save the headache. When all statues are on the Boss will spawn down below.

Now go to the statue balcony that is over the ALTAR down below, u can just FALL not jump off and will land near the top of the steps next to the altar. while the boss and his 2 mobs are near the statue. We always clean the altar area to give a little working room for the Swamp Boss. Just wait for him to PAT back to the steps and get some or pull him........u wait can have him alone u not wait u get him and 2-3 other mobs your choice. if questing click the large snake statue

Work way around the swamp boss/altar walkway kill off the dozen mobs fer exp pts & loot (that's why yer there anyways) now work your way back up stairs near instance.

Gratz u cleaned out the basement/lower level crap......the little larvas have drop blue & purple on our runs so we kill it all.

DRAGON KIN
Work way up kill Dragon kin & anything else not in yer group.....we start with casters then highest level down all dps on marked mobs fight should be 30 secs-1 mintues for each mob in the group if that. Kill all dragon kins and anything else in this large room in the center is a hole that drops down to the basement where the swamp boss is......there no reason to be close to that hole but if you fall u die from the damage u receive from the fall.......its a long way down.

MORPHIAZ & little Brother

When u pull u get them BOTH

kill Little one first probably half way through the fight Big M will target healer if you have one....off tank, pet tank or whatever but not toe to toe.....let tankage gather aggro then run in large circle close to heal range while group takes little one down.....reduces mana needed for healing this way. Big M got mere hit pts and takes longer to kill.......I personally think the little one has a slight DPS increase than Morphiaz but its just my opinion, and that is why I chose to take the little one first.....1+ years it worked well.

HAKKAR

when u enter upper Dragon Kin area Hakkar hall to right and is the First 2 halls on right. Before him or any other boss we kill every single Dragonkin...
U can Egg summon him.......or scroll summon him. Scroll is from Taranis Shaman along beach and the scroll is reuseable. When fight starts door gates close....snakes spawn non elite...basically kill it all....the FLYING mobs drop blood everytime, we group loot so whoever loots just run to which ever flame is on gear box it and flame is out.........flame may relight or may not......but just keep killing everything stick together and put out all flames....when all flames are out Hakkar is able to attack and be attacked. The only thing about this whole fight is a timer....the Dragonkin caster will come in to place Hakkar back ...they can cast on him a little but do not let them go unchecked or your Hakkar run will be over.....you can normally get hakkar spawned and killed before 3 Dragonkin make it into room.

JAMMAL
Bunch of undead and alive mobs. We always pull out in hallway to the back wall. The mobs CAN fear, which can be disspelled.....if I play my healer I pull then swing around to place myself between group and Jammals lair......if a group member become feared I can dispell before they reach the lair and we receive no adds. AS healer I pull with shackle......if tank ....well just pull u get groups of 3-4. Some of them when they die spawn timed ghosted that move slow .....u can not hurt them so if fighting a pocket and one pops ......just keep backing up out of ghost range till it despawns maybe in 15 secs.

We go 100% dps on Jammal, Jammal has a spell that turns the target into his bitch...u can run out into dragonkin circle room and aggro will drop and regroup if you feel a wipe coming.......when u kill him kill his guard......just make sure u killed his whole room first.
Jammal not that bad if everyone DPS him he casts nothing if you play grab ass well.....you become his bitch
ERRAKUS

KILL ALL MOBS IN this area no excpetions....all dragons & dragonkins then u get free shot at him.
Take him anyway u want..........we always go in waves of about 10secs.....or less and rape him.

That is all great zone GREAT drops good luck
My group rule 3 warning for not targeting the correct marked mobs after that u get booted...makes group smooth controlled DPS and fast runs....many groups only kicked out one person.

Gemy~60 Lock Whisperwind

As exciting as it is to hear about your group composition, what I'd rather see here is a decent cliff's notes walkthrough. Gathering from several sources, here is my short walkthrough:

Zone in, take the hard right.  Head all the way down the stairs killing everything in your path. Keep going to the pool with the altar, kill enough to get to the pool and kill the mobs in the pool.

Go back up the stairs and at the entrance area take a hard right (this is the front right path looking in from the instance line.) When you hit the up/down stairs, go down. This should lead you to a hall that changes your minimap to say, "Hall of Serpents." Go in and kill everything in your way making your way to the southern statue room.  The order to deactivate the rooms is south, north, southwest, southeast, northwest, northeast.

After you activate all the statues, jump down or walk back to the pool room you cleared earlier and do the Atal statue event and [51] Into the Depths if any party members have it, then go back to the entrance room.

Take the forward left path (the front right one will work also.) and the stairs leading up until you get to the circular hall that changes your map to say, "Hall of the Cursed."  From here you have to find all the side stairs and rooms that lead to the 6 minibosses.  After all of these bosses are killed, go back to the entrance room and take the left path.

From the left path you run into dragons, LOTS of dragons. Don't jump into the hole in the middle of the big room (although from this guide you would have cleared the mobs below it already, it supposedly takes levi/safe fall/pally bub to survive.) Make sure your tank knows how to AE taunt because the dragons come in packs that can really put the beating on cloth wearers.  After some good aggro it should be safe to heal or damage, mages wait until the priest starts healing and by then hopefully the tank has enough AE aggro that neither of you gets attacked. You can't kill the bosses on this floor unless you killed the 6 bosses in the circle. Kill Jammal`an the Prophet/Ogom the Wretched and then Dreamscythe and Weaver and then do [53]The God Hakkar quest if anyone has it.  Finish up by killing Shade of Eranikus and you are done.

References:
WoWWiki (quests and links)
WorldofWar.net (map)

When fighting the last boss, he will call upon all green dragons that are still alive in the instance, i was doing this with my 70 and skipped nearly all the mobs, i actually died when 100000 dragons jumped on me.

However, you do not have to kill all dragons to attack the last boss. simply attack the boss and go out of combat(e.g. rogues attack and vanish) and watch the huge line of dragons run to the boss(make sure nobody is in the way), the dragons will stay near the boss for a few seconds and eventually run back to the originial positions. Once the LAST dragon starts running, attack the boss and take him out, he will call for help, but it seems when the mobs are resetting, they will not run back and defend the last boss.

If you don't play very long a day, or like to skip mobs, I hope this helps.

Just a quick note to let you know that you can get into this instance at level 35 now.

Just soloed everything very easily with my 60 level warlock. Didn't even use a health funnel... No special items, all my items are from BRD or lower...

P.S. Blizzard just ruined preTBC dungeons...

I died inside the instance, and then couldn't get back because you need to swim under water to get in. And to make matters worse, I now can't find the spirit healer.

Am I missing something? Is there some way of getting back to the instance when dead?

Just point your screen down and pretend like you can swim into the water when you're dead, ta da, now you can swim as a spirit!

I have tried pointing my screen down untilI was looking at the top of my characters spirit head but he still refused to go under water??

What am I doing wrong??