Go to Red obelisk you'll thank me later

Be careful if you have a tamed megalodon or two following your raft. Wild megas will agro your tamed ones and once one dies (tamed or wild) they start to swarm which means yours are as good as dead.

Avoid this animal in the wild as it is aggressive. But once tamed they make a good water defense for underwater or island bases, both pvp and pve

Don't get stuck.

Build a behemoth water pen, then open a gate and lure one in. Then simply shut the gate and tranq it out! I'm taking two right now!