Lake in Dusk

Requirements

 * Being Level 65
 * Have a Map Part in your inventory
 * Have 60 minutes free to kill without resting, that's the time that the dungeon lasts
 * If the need arises you can pause the dungeon ONLY if you are running solo.

Entry
The entrance to the dungeon is at the end of the Red Jungle in Green Despair, past the Moscutter Queens:

You must have a Map Part in your inventory to enter.

Map
There is no in-game map of the dungeon, but someone has made this map here:

It may help if you get lost.