This is the only sea mount you should currently use for adventuring or the underwater caves. High levels easily tear through alphas and other hard to kill creatures like squids or mosas without the fear of dismounting due to squids or eels or jellyfish.
Do not be almarmed by it taking damage in deep water, its very small and takes a long time to kill your whale and can easily be healed by surfacing. The underwater caves have pockets you can surface at to heal. The surface healing can out-heal almost all wild dino damage and a lot of the cave damage. Fight at the surface if you can.
They also generate oil over time. They can only carry 20 oil at a time though so make sure you empty it often. The oil also spoils so use it quickly.
You can also press left trigger at the surface to jump and spray water. Careful not to beach your whale in the process though.
King of the sea. A tuso or mosa will do more damage but you can not be knocked off a basil making them essential for underwater caves which are full of jellies, Eels and even tuso's. They are also the perfect size to navigate through them without getting stuck or having to dismount. If you have a Baryonyx they are very easy tames, just use the AoE spin attack to kill all the Manta's and you can passively tame it at your leisure. Combine their oil with organic poly and water in a cooker to make soap which doesn't expire and can be ground back into oil and organic poly when you need it.
A great beginner tame, once you have an icthyosaurus, you can swim up to it and passive tame it. I just tamed one, and less than 5 minutes after I tamed a level 4, it’s killed 2 megalodons and 4 mantas. Like so noobs and beach bobs can see.
Good fighter, immune to jellies, supernatural healing boost at the surface, produces oil in its inventory, impervious to squid grabs, looks kinda cute too, only one bad thing about it: it gets squashed in the deep! Only slowly but the damage is there!
Can kill squid like their kin in real life. Tame a 150 and you can take on alphas like they are regular ones. Just up health and memes. They recover steam so quick boosting it is pointless. An all around amazing creature, 10/10.