Hi there! We will be traveling to Moorea and Bora Bora in September. My husband is looking for a solo hike he can do one day while I go do girly stuff at the Spa. He really prefers not to do a guided hike. He'd also like something challenging. Are there any hiking maps that show the trail heads? Are some of them privately owned? I'd appreciate any helpful info. For some reason my search is not working right for me at the moment..