The water in Prehistoric Farm is not scenery. The official description groups fishing and diving with bigger boats and new fossil islands as the things that open up through exploration, and the two biggest named set pieces in the game — the Sunken Grotto and the Mosasaurus — are both underwater.
Confirmed: two activities, one direction of travel
Fishing and diving appear as part of the same exploration track as boats. That ordering is the useful signal: a bigger boat is what gets you to the water worth fishing and diving in, which means the underwater content is downstream of the boat line rather than available from your starting dock.
It also means the water is not optional flavour. Sea-reptile eggs in the Sunken Grotto are a confirmed route to creatures you cannot get from the DNA Lab, so a player who ignores diving is ignoring part of the roster.
What a beginner should take from it
Do not treat the sea as the thing you do when you run out of fossils. Treat it as the second half of the game that you are gradually buying access to with boats.
When you first get the ability to dive, go and look rather than farm. Find where the grotto is, see what the fishing spots look like, and learn whether there is anything hostile down there before you commit a full session. The Mosasaurus is described as something a group fights with spears, which strongly implies the water is not uniformly safe for one person.
And keep your dinosaurs fed before a long trip. Diving sessions are the easiest way to lose track of time, and growth stops while the belly meter sits below half whether or not you are having a good dive.
Still to be announced
Everything mechanical. How fishing is performed, what the catch table contains, whether fish feed dinosaurs or sell for currency, whether there is a rod progression, how diving handles oxygen or depth, whether fossils can be dug underwater, and whether any of it has its own tool upgrades. None of that is in a primary source.
This page will be rewritten with specifics the moment they exist. Until then it is an honest sketch of a confirmed system rather than a fabricated manual for one.
Sources: official Roblox experience page for Prehistoric Farm — exploration description naming fishing, diving, the Sunken Grotto and the Mosasaurus (captured 11 October 2026).
Questions
Frequently asked questions
Is there fishing in Prehistoric Farm?
Yes. Fishing and diving are both named in the official experience description as part of what opens up as you explore, alongside bigger boats and new fossil islands.
What do you get from fishing?
Not published. The description confirms fishing exists without listing a catch table, a rod progression or what fish are used for.
Do I need diving gear?
Unstated. Diving is named as an activity, but no equipment, oxygen system or depth limit has been described by the developer.