The bath house feels tacked on, as a cheap way of replenishing energy for free. And that is OK. But it could stand some improvements nonetheless. -Other villagers should visit it from time to time (not too often, since it's a bit of a long ways from the core town). -Somebody could work as a pool lifeguard or similar. -There could be a relaxing/floating/whatever mini-game to make it more interactive (than step into pool, wait, step out of pool). -The town could have a yearly swimming event in those hot summers. -There could be more than just the one thing to do there. Etc.