Black Flag's I'm going to tip my tricorn to them.
How is Big is the Map? nearly five hours of swimming from one corner of Ubisoft's Caribbean to the other. No breaks, no pauses, just … gentle swimming, for 4:51:15.
Sure, there are a few moments where something happens. A passing ship battle, the navigating of an island channel. But for the most part this is nothing but leaving it on in the background is very relaxing) and Edward Kenway getting some excellent cardio work in.