Most of this level is either floating along on Monkey's cloud or being the gunner on the boat once you find it.
If you are going for 100% orbs you will likely have to do the stage over several times, as it is easy to miss orbs in the last sequence.
The boss fight for this stage is a chase. A dog is chasing Trip on Pig's boat, and Monkey is chasing the dog. Catch up to it and hit it with a takedown.
For tips on how to get to the dog in under 36 seconds, see: