With the pool/water slides across the river, and the shuttle stop for tubing the river across the street and down the road. This campground is the perfect place to enjoy all the water offerings during the summer at Lava Hot Springs. If you are going to rent tubes to ride the river rent through the front desk at the KOA. It is 15% off the price of renting at the tube pickup location.
We have stayed at this KOA for 2 different trips exploring Yellowstone. It is far enough outside of the town of West Yellowstone that you don't feel like you are that tourist trap, but close enough to get to Yellowstone easily. Always clean bathrooms and showers. Indoor pool and Spa to help relax after a day of exploring the Park. Mini-golf course and playground is for young kids to just play. They have food at the KOA it is a bit spendy but convenient to get going in the morning to get the most out of your days at Yellowstone.