Guardians not knowing how to swim really sets the game back by a lot. In the aspect of exploration and discovery. So many ideas and plans for the game if swimming was implemented is so huge i'm pretty sure its on your to do list. The benefits? 1. New Weapons 2. Aquatic Creatures/Life (from beautiful scenery to titan size enemies which leads to...) 3. Underwater/Sea Vehicles 4. Underwater/ Coastal Cities 5. More places to travel These are just some of the ideas I just thought. Don't let this great feature go by. I can go into detail if need be.