Cross Over Trail takes you from the northern end of Ocotillo Wells OHV to the middle section near Shell Reef. This is a great trail with optional harder lines on the sides. Now this trail is on the harder side of easy but can still be done in 2WD in shorter and narrower high-ground clearance vehicles. As you cross the desert, you will see a constant change in the desert, some areas are sandy, while others almost seem like they are being pushed out of the depths below. Just watch out near the middle mud hills if it rains. That can make things really interesting really fast. If you are looking for camping, check out the hills on the north side of this trail.