Hours: Park open daily dawn-dusk. Gorge trail open daily dawn-dusk, mid-May through early Nov. Shuttle bus runs daily 9-6, July 5-Labor Day; Sat.-Sun. 9-6, mid-May through July 4 and day after Labor Day to early Nov. Pool open daily 11-7, mid-June through Labor Day. Campsites open mid-May to mid-Oct. Allow 1 hour, 30 minutes minimum.