I think that fishing is one of the coolest upgrades that have been introduced so far but i think it should be expanded in order to give more deepth to the game. The seas around the islandsncould be used as a resource for fishing and, randomly, seamonsters could spawn to give a further threat to our lives. I also think that building boats could be interesting (think about houseboats) or fire beacons and stuff. the sea takes a lot of place in the map and it's a shame that it just isn't getting used at all. Sunken treasure chests and messages in a bottle among players could be somehing fun. think about writing a message and some other random user getting it... What do you think about it?