This is a very entertaining and well-run tour! We really enjoyed all of it, but it's not for the…read morefaint-hearted; e.g., you'll be wearing a wetsuit, which means you'll be getting wet and the water will seem cold at first. But seeing the glowworms and tubing down the river are so much fun it's all worth it. And then you can have lunch there, which is also really superb and a great way to finish the tour