Organization: National Park ServiceLocation: 1849 C St NWWashington, DC, 20240United StatesSee map: Google MapsPhone:202-208-6843 2025 Free Entrance Days in the National ParksDates: 06/19/202508/04/202509/27/2025Show more datesHide these dates11/11/2025Time: See website for details. Organization: Great Wolf Lodge Northern CaliforniaLocation: 2500 Daniels StreetManteca, CA, 95337United StatesSee map: Google MapsPhone:209 707 2227 Hotel Stay & Indoor Water ParkDates: 06/01/202506/02/202506/03/2025Show more datesHide these dates06/04/202506/05/202508/17/202508/18/202508/19/202508/20/202508/21/202509/14/202509/15/202509/16/202509/17/202509/18/202510/12/202510/13/202510/14/202510/15/202510/16/202512/07/202512/08/202512/09/202512/10/202512/11/2025Time: 4:00 PM
