My sovereign was attempting to cross the water in a boat. However the far shores were completely made up of cliffs. After spending a number of turns unsuccessfully trying to get off my boat I decided to teleport myself to friendly territory. When I cast teleport next to one of my cities the boat came with me.
Teleporting while in a boat causes the boat unit to be teleported along with the caster. The annoying thing is that once I had teleported the the end turn button started to act up to the point that end turn didn't work anymore.
BTW what is a good score in elemental? I haven't had a score over 67