For all reservations concerning camping at Bothe - Napa Valley State Park, please call Reserve America at 1-800-444-PARK.  Family campsites, excluding walk-ins, are available for reservation from April 1 thru October 31.  For all the other days, campsites are on a first come, first serve basis.  The Group Camp, on the other hand, can be reserved at any time of the year. 

For reservations of the group day use facility at the park, please call: (707) 942-4575.

The Department of Parks & Recreation has more reservation info available as well.