Ok, first off, a lion…swimming in the ocean?
Lions don’t even like water.
If you placed it near a river, or some sort of fresh water source, that’d make sense.
But you find yourself in the ocean, a 20 ft wave, I’m assuming its off the coast of South Africa, coming up against a full, grown, 800 lb tuna with his 20 or 30 friends.
You lose that battle. you lose that battle nine times out of ten.