Lower Boy Scout Lake is a popular fishing spot located in the John Muir Wilderness in California, USA. The lake is known for its abundant trout population, including rainbow, brown, and golden trout. Nearby activities include hiking, camping, and wildlife viewing. Fishing tips include using small lures and flies, and fishing in the early morning or late afternoon. The best time to visit is from late June to early September, with average temperatures ranging from 50°F to 70°F.