Three developed Forest Service campgrounds serve the Lake Arrowhead area, all seasonal (roughly mid-April through October) and all booked through Recreation.gov. The short version: Dogwood is the big full-featured one (showers, electric sites), North Shore is the small quiet one next to the trails, and Green Valley is the high-elevation one near the swimmable lake. Summer weekends book out — reserve the 6-month window.
The full-service one: 87 sites, showers, electric hookups, $40–79/night, 10 minutes from the Village. Books out summer weekends.
Details, fees & parking →The small quiet one closest to the lake: 28 sites, two trails out the back, $29–56/night, and 6 first-come sites.
Details, fees & parking →High, cool, and a mile from a swimmable lake: 37 sites at ~7,000 ft, $25–56/night, 11 first-come sites.
Details, fees & parking →