Because Mount Mazama lies within a national park area, collecting rocks within the vicinity is prohibited unless a permit is obtained. The park's facilities lie at Rim Village, at the southern edge of the caldera. Lodging and camping facilities open during the summer season between May and October. No lodges, gas stations, or camping areas remain open from October through late May. Popular activities within Crater Lake National Park include biking, fishing, cross-country skiing, and snowshoeing.