A named dive

Sunken Grotto

Checked 2026-10-12. Sources are listed at the bottom of this page.

Original underwater illustration of a long-neck sea reptile, a shark rider, and a pink egg

Project Mirvy's official description confirms stealing sea reptile eggs in Sunken Grotto. It does not establish a stealth meter, a boss inside the cave, or a particular gear requirement.

What I still cannot add

The door's location relative to the ranch.
Whether the bigger boat is required.
Which reptiles the eggs become.
Whether the Mosasaurus patrols the same cave.

The core location intent remains unmet: there is no sourced entrance route or egg roster here. General diving advice cannot substitute for finding this cave.

Questions

Does sneak mean a stealth meter?

The wording alone does not establish a stealth mechanic.

Is this the Nessie or Panthalassa entrance?

No reviewed source establishes that equivalence. Those routes must remain separate.

Sources

Roblox games API, universe 10768944292 — accessed 2026-10-12
Roblox game page for Prehistoric Farm — accessed 2026-10-12
Roblox game passes API for Prehistoric Farm — accessed 2026-10-12