May to give this possibility to walk on boat only when it's moored... another idea to put Canon on the boat, and ONLY on PVP server you make sea battle, and on a limit of damage to overtake the boat that lost the battle....
So much work, to create a boat. Idea that it should be possible
to walk over deck and under deck. Over deck also to place items. Under deck should be cargo rooms, and also cabin to place items like in a house.