Sort:  

You can click on it to zoom in ;-)

I think they are just having a sleep probably and then heading off again. But might get a surprise where they end up.

But if they're on a ship that's bobbing around in the ocean and they're asleep on a part of a ship that's dipping in and out of the water wouldn't they wash off? Are they made of some kind of velcro like substance that can attach to anything?! :O

There in lies the mystery !