Y'all, I don't usually right detailed reviews but there really is no better way to explore the island than booking a camper van from Jay.
You may think you're only renting a camper van, but what you're really getting is much more than that. Jay has so much knowledge about the island, the cool spots to camp and explore, local tips that will make enjoying those places a lot more memorable (like when to go, what to watch for, etc.), and a lot more. He's also always a text message away and can guide you through anything you may be going through (I needed to find the closest store to get a new propane gas tank but didn't have internet, I texted him with my location and he told me exactly where to go). He gives you a detailed booklet about places to explore that is so detailed you don't need to plan anything else.
Add to that also that he's friendly, was able to accommodate an early check-in, and dropped us off at a nearby Cafe after checkout to enjoy our last brunch before leaving the island. My girlfriend and I had a blast, we will be coming back and we will never consider booking a resort again -- this is THE WAY to enjoy Maui.