Rock Creek is a county run park that is really great if you are visiting Twin Falls. The sites are great and even though they say that the back in sites (1-9) are only for 30 ft rigs, we easily got our 36 ft 5th wheel in site #4. Close to everything and very nice hosts. Bike or hike at the park and enjoy all of the open space. Twin Falls has a lot to offer down by the river also