Blue Hole Shallows
0–50 mEarly fish, reefs, event routes and the shipwreck approach.
Plan routes through changing layouts with reliable depth bands.

Early fish, reefs, event routes and the shipwreck approach.
Limestone Cave, Record Chamber and larger predators.
Dark-water species and the route toward Sea People Village.
A fixed late-story connection with unique creatures and puzzles.
Cold-water routes, control rooms and high-rank ingredients.
Heat hazards, final story routes and endgame fish.
Freshwater diving, rod fishing and DLC-only systems.
The Blue Hole rearranges loose items and some routes between dives. Use depth, named subareas and story landmarks instead of expecting a fixed pixel-perfect coordinate.