Funny glitch

I should have taken a picture of it but I was doing a new playthrough last night and being a little pirate before getting to megaris and when I was boarding a ship I went to jump across to the other ship and ended up diving in to the water instead..... Problem was that when I dove into the water I somehow glitched into my ship stuck swimming around trying to get out. Luckily my crew took care of the other ship and I fast travelled out of the glitch