A selection of large underwater maps for Adventurer's League Cauldron of Sapphire DDAL07-17. Specifically open ocean, deep sea trench, caldera (with and without vents) and the cauldron. There are also a small collection of floating rocks (from the adventure text: "chunks of pumice") that can be used to add some interest to otherwise very open terrain.
I have not included maps where no combat happens in (those inside the cave system), including the The Cave of Life, which is better described than drawn.
60x40 (6000 x 4000)
100p/grid
jpg + png + webp