I've NEVER SEEN ONE PERSON in bloodfish/celps (35 water rooms), and it's a decent area. Some of the swimming there teaches to 500 but since it's never used it could be converted to be rooms swimming the bay. There is a good amount of atmospheric messaging when you ride the galleys that depicts the vibrant health of those waters that would be extremely sweet to expand upon. M'riss is volcanic, but the Bay in the vicinity of Kresh hasn't seen direct impacts in a long time and must be lush with corals and worm reefs.
Like the Segoltha have shallow water swim rooms on the Rissan shore (100-250) and chest-overhead/medium swims right against Kresh pilings (200-400). Have deep water inbetween where the main tidal current runs through (400+). Put various sharks in those areas and maybe bloodfish as well.
And have actual good current mechanics, something like the Wyvern Mountain waterfall or the under-swamp waterfall. Not the strange physics that drag you east but have you stay safely in the same room. Drag people out into the Reshal and drown them.
--Sunny, Tidal Magess
