South Campground at Zion National Park now accessible by online reservation only On March 1, the South Campground at Zion National Park became accessible only by reservation. Reservations for campsites at South Campground may be made two weeks prior to your arrival date online at recreation.gov or by calling (877) 444-6777. Reservations are needed as … Continue reading South Campground at Zion National Park now accessible by online reservation only