Adventure Location - Underwater

Short location for an encounter, ambush or distraction. Options for a possible interesting extra.
Encounters underwater bring visions of murky seas, vast reefs and dark depths. They might occur in a kelp bed, an underwater cave or by a long-forgotten shipwreck

tools for - dnd5e encounters location underwater

terrain: Terrain Type:

A large pocket of air and a patch of sea mushrooms (by an ancient line of statues)
A narrow gorge. There is a patch of dead soft coral with a seaweed garden (close by is a wide cave entrance)
An old remnant of another civilisation (a noticeable current pulls creatures downward)
An algae-covered stone mosaic surrounded by coral (there is a harmless swarm of fish approaching)
A patch of white sea mushrooms near a hidden underwater cave entrance (many coloured lights are in the area)
An imposing cliff (the area is sacred to a power of peace)
A wide crevasse (it is in an area affected by a mirage arcana)
A part-buried trench and a carved rock (there are several clumps of sea grass)
A crumbling giant statue and a sunken small monument (close by is a trench)
A covered underwater cave entrance (close by is an area of open water)