Letchworth has a few options: cabin, barebones cabin, and a few tent sites. I’ve stayed several times. We’ve hiked, white water rafted, gone to the pool, playgrounds, etc. The park is huge and absolutely gorgeous. You can easily spend a week here and have plenty to do in the park as well as the local towns. You can tour the dam as well. The views along the road through the park are incredible. Go to Letchworth. You will love it.