10 Open World Locations You Shouldn't Enter

5. The Ocean - The Witcher 3

Just, the entire ocean. Just don't mess with it.

Not because of anything specific that lives down there. Honestly, the biggest problem with Witcher 3's world is a lack of any Kraken-type sea monsters to harass you while on the waves. It's more to do with how frustrating the mechanics of sailing are, particularly in combat. 

See, the trick of fighting on a boat in this game is that your boat can be destroyed while in combat. Well okay, you might say, that sounds potentially frustrating, but not too bad. However, the key thing is that the boat isn't immune to friendly fire. Misfire a spell? Mistime a sword swing? Do either or both of those things too many times? Well, you'd better hope you're a good swimmer, because you're about to do a lot of it now that you've inadvertently destroyed your own boat.

And no, you cannot fast-travel back to shore. Fast travel while on the ocean only works if you're in a boat. 

If you can help it, just give the sea a nice, wide berth.