Originally posted by XistenZ:

Wait serpents drop more than meat?? How are they designed to drop stuff that sinks when you only fight them in the ocean

Eat some good food, make some stamina potions and a harpoon (hint : chitin)

You find a serpent, lower its health, then harpoon it and jump on the wheel. Drive full speed at the shore hop out, and drag it up and kill it.