If you are 16 years of age or older, you must have a California fishing license. Ledson Marsh dries up by late August or early September and so no fish are found there. The park is east of Santa Rosa and south of Highway 12 on Channel Drive via Montgomery Drive. Wintertime highs are in the 50s. Rainfall averages about 30 inches a year, most of it during the winter and early spring.
Snow is quite rare, and there is little fog.
There is no camping in the park. Fires, campstoves, and barbecues are not allowed. Campsites are available at the county campground at Spring Lake and at Sugarloaf Ridge State Park, about ten miles east of Annadel via Highway 12 and Adobe Canyon Road. Horses and bicycles are allowed only on designated trails. Off-trail riding is not permitted.