Captain Ron made our 4 Ā½-hour tour through Joshua Tree National Park a delight. He is very knowledgeable about the geology, plants and animals in this desert, and he made the desert come alive for us. We saw beautiful and colorful flowers that we might not have noticed if we had been on our own, and then learned how the Serrano, Cahuilla, Chemehuevi and Mojave tribes used them for food and medicine.