Group Sites: Reservations are needed for the park's two group campsites. Kalaloch: (360) 962-2271. Phone reservations only, 10 person minimum, 30 maximum, 7 day maximum stay, $40 a night up to 10 people, $2 per additional person. Pit toilets, water, limited parking, no beach access. Sol Duc: Reserve at www.recreation.gov or call (877)-444-6777. Organized groups only, 24 person and 8 stock maximum, 7 day maximum stay, $43 a night though fee may vary by date. Vault toilets. Closest water at ranger station.