Amazing! Do it! - We were surprised how great this trip was for how cheap they charge. First we stopped to check out the fish market and it was really cool to see. Then we went to the waterfall. I'm an amateur hiker and climber so I would say its at a medium difficulty. It starts off flat then its a not-so-steep upward climb on large rocks that lead up to 3 different stops up to the waterfall. It was really nice to swim in and our guide let us stop at each one. He goes by your pace and can assist but you shouldn't need it. If you're very out of shape this might not be for you. There is a bit of climbing and maneuvering involved. Then he takes you down back through the jungle. I think overall it wasn't more than a mile or 2 and we spent about 3-4 hours completing it with stops. I was exhausted the next day but the hike was amazing. Then you eat lunch on Monkey island. If you're visiting Nha Trang I would put this on your "must-do" list.