Lake Mead provides many types of recreation to locals and visitors. Boating is the most popular. Additional activities include fishing, swimming, sunbathing, and water skiing. Four marinas are located on Lake Mead: Las Vegas Boat Harbor and Lake Mead Marina (in Hemenway Harbor, NV) operated by the Gripentogs, and Callville Bay (in Callville Bay, NV) and Temple Bar (in Arizona), both operated by Forever Resorts. The area also has many coves with rocky cliffs and sandy beaches. Several small to medium-sized islands occur in the lake area depending on the water level. In addition, the Alan Bible Visitor Center hosts the Alan Bible Botanical Garden, a small garden of cactus and other plants native to the Mojave Desert. The Grand Wash is a recreational area located in the north side of the lake.