The area consists of large pool of water and a land mass that each occupy around half of the area. The pool of water appears to be connected to the ocean and a tower can be seen in the distance when looking outwards from the pool of water. This tower appears to be the lighthouse of Port Tanzia.
The base camp in the Tainted Sea can only be reached by using a Farcaster or fainting. It contains the usual items of First Aid Meds, Rations, Mini Whetstones, some bowgun ammo, Power Coatings and 20 Ballista Ammo for the two Ballistae in the fighting area. There is no bed.