D&D Random Encounters for 5E - Underwater

Encounters might be a meeting with a patrol of guards at an old shrine or a familiar looking for aid. It might be an ambush in the wilderness, a stand-off in the city or a monster in the Underdark.
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

level: party size: terrain: sources: type:

At an undersea mountain (which is associated with seahorses)
They are exploring a magical portal
In a fight they attack whoever is causing them the most pain
Difficulty... 600.0 Deadly

At a rock reef (the area is a portal to the shadowfell here)
They are watching a magical portal
In a fight they attack whoever looks most dangerous
Difficulty... 700 Deadly

combatsahuagin

2 Sahuagin led by one named Reimund

At a narrow gorge (nearby is a patch of yellow seaweed)
They are preparing to go to the surface
In a fight they surrender if things go badly
Possibly... they have mason's tools
Difficulty... 300.0 Hard

At an area of open water (there are several sea urchins or a lawn of sea grass)
They are in need of help
In a fight they run and hide if things go badly
Possibly... they have 2d4 waterproof ceramic and glass lanterns capable of working underwater (50 gp each)
Difficulty... 200 Medium

At an area of pretty sea plants (there is the skeleton of a shapechanger)
They are hiding from a nearby light source
In a fight they fight to the bitter end
Possibly... they have an exotic saddle
Difficulty... 200 Medium