You took a boat

You decide the best course of action is to take a boat. Of course! You hop in the "S.S. Grace's Boat" and set sail. Anchors aweigh! Hoist the mizzenmast! Let's get bizzay!

But what be that ye see just over the horizon? Ah....ahhhhhhhh.....AHHHHHHHHH!!!!!!!!!!!

Looks like big trouble just came up out the ocean, and its name is The Terrible Turgdor. You'll have to be swift when you take care of this beast, or you'll be late for the party.
What do you do?