You can find the entrance to this is at the Fishing Island, Ilmir. You need level 40 in fishing or 5 Huge white pearls to access the island.
Note that you need at least level 200 to access this dungeon.
This Dungeon is part of the three beasts questline. Once inside it, you will need to walk through the caves and kill all monsters inside of it.
At the end of the dungeon use the exit portal to get out of the dungeon. There is a 5 minute cooldown after you finished your last dungeon until you can enter the next one.
(Dungeon entrance Cost is 1 Premium Card
Or 1 Dungeon Ticket 
!)
Monsters in the Dungeon
Boss
Completion Rewards
Sparkler
Mystic long targe
Pavise of glory
Dungeon gift
