We visited this place on the afternoon of our first day in Saipan. The road to the closed island is unrepaired, so be prepared for bumps. The entrance to the trail is not obvious. We found it was still because several cars were parked around. It takes about an hour and a half to walk and it’s still quite tough! You need to make sure you have good quality shoes, hats and lots of water. I wasn’t prepared for this tough hike and I was wearing slippers...but it was definitely worth the hard work. I just wish this place would remain pristine forever!