I did the same. I'm still on the first island but I've got just about everything. But man...
I love swimming across a river, noticing a deer on the bank, continuing to swim up to it and OUT OF NOWHERE A f**k CROCODILE LUNGES AT THE DEER, SNAPS ITS JAW AROUND THE DEER'S TORSO, AND EATS IT.
That was a bit of a "O SHIT" moment.