Go when you can get one of the wagons, instead of the lodge, (except in hot weather). The wagons are private but no heat or A/C. The lodge has a few private rooms but is mostly "open" community bunk bed style and can be a little crazy when uninhibited euros are around. There's a very small window between the start of the river runner season and the end. The river runner season has better activities, but off season is more peaceful, better weather, and more likely to get a wagon.