The Park to Park Ride is a bike ride from Knott's Sky Park in Twentynine Palms to Key's View in Joshua Tree National Park and back. This is a family event sponsored by The City of Twentynine Palms, Joshua Tree National Park, and the Marine Corps Air Ground Combat Center in Twentynine Palms. Click on the April 28 Calendar page at 29Palms.org for information on entry fees, maps, and registration forms.