The folks at Rain Forest Zip Line were fantastic. Rafaela was very accommodating on the phone with our last minute request to join a group the next morning, and provided excellent directions. Easy 45 minute drive from San Juan. Everyone was warm and friendly. Jorge and Joshua were especially outgoing. The guys there were focused on safety, instructional, funny, and we had an excellent time (about 2 hours start to finish). My wife and I had never done this and I was flat-out riddled with anxiety, but it was safe (they even latch you in when climbing ladders), easy and fun. The views were fantastic too. We can't wait to come back with the kids! Highly recommended! Note- after we went to El Yunque (5 minutes away) and hiked the Big Tree trail, super fun (about 1.5 hours). Great way to spend the day.