Since you cannot reserve at this campground, you have to plan ahead and wake up early! We got to the campground by 7am and secured a site. We loved camping there! The big campgrounds in Yellowstone are a bit crowded which makes them less enjoyable. The sites at Tower Fall are pretty spaced out, which is really nice! It's really quiet & really pretty! It's a great spot to camp when exploring the Northern or Eastern edges of Yellowstone. It's also close to Lamar Valley, which is nice because you can get there at dusk or dawn for some good chances of seeing bears & wolves.