Silversea
Savannah Queen
Would you mind describing how it moves? xD I don't dive too much, so I'm not sure how fast other things move, either.
Like what do you mean by jumps? Sorry for the idiot questions, I've really avoided diving. D:
Well like I said, it moves like the scallop. It stays still for a bit, jumps a short distance, stops, jumps, etc.