Just in case you've forgotten how to dry dock a boat and are too embarrassed to ask, it's very easy. Before you leave the boat, say: "Drop anchor." Exit the boat. From the shore, click on the tillerman. You'll get a gump that asks if you want to dry dock the boat. Click "Yes." Voila! Instant boat model in your pack! Please keep in mind the shore line for reaching the entrance to the Underworld isn't that large and it takes several days for the boat you carelessly left behind to collapse. Show some consideration for the folks who share the game with you and please dry dock your boat if you don't intend to keep using it.