TWENTYNINE PALMS, Calif. (AP) — Joshua Tree National Park is slowly reopening after a lengthy closure to slow spread of the coronavirus. The California park announced this week that it is using a phased approach.

Park entrances, roads, parking lots, trails, individual campsites and most restrooms are open. Visitor centers and group campsites remain closed and all campsite reservations made through recreation.gov are canceled.

The park says all campsites are first-come, first-served until Sept. 4, and campers must pay as normal at each campground. Spring and fall are the best times to visit. Summer brings scorching heat and the need to drink at least one gallon (4 liters) of water a day.