Things to Do In Island Park Idaho
Island Park offers year-round outdoor recreation including Yellowstone National Park, ATV riding, snowmobiling, fishing, hiking, wildlife viewing, and family adventures.
Mesa Falls
Mesa Falls is one of Idaho's most beautiful waterfalls and a must-see attraction located a short drive from Sawtelle Mountain Resort. Mesa Falls is split into two sections, Upper and Lower Mesa Falls. The Upper is fabulous, you don’t want to miss it. After parking at the trailhead, walk over to the small Visitor Center. Inside you’ll find rangers, information, and restrooms. A short walk from the visitor center is an easy, short (.6-m round trip) trail that leads down to the viewing platform for a closer look at the Upper Mesa Falls.
Lower Mesa Falls is just a mile or two up the road. There is a pullout with an overlook and you see the cascade from there. The waterfall is large and impressive, but it is very far away from this viewpoint.
https://visitidaho.org/things-to-do/natural-attractions/mesa-falls/

Yellowstone National Park
Visit one of America’s most loved National Parks, known for it’s striking views and abundant wildlife. Yellowstone offers geysers, wildlife, scenic drives, hiking trails, and unforgettable family experiences. Photograph waterfalls, vistas, bison, bears, moose, and more.