I'm sure this has been brought up before, but there are two things I'd like to see changed to swimming in this game.
1) Underwater Swimming. Turbine already knows how to code the ability within the game, as DDO has the ability and it is quite fun to swim under water for a time. Of course we have nothing to help us stay alive for large amount of times, but still it would be nice to see what is on the bottom of the water in ever swim.
2) Make swimming faster than it is now. DDO has much faster swimming, so it can be coded and it would make it less of a drag doing the quests in the same area as mentioned above.
Just a thought probably regurgitated over and over again, but still would like to see the change.