This is the second day tour my wife and I have done with Grasshopper (the first was a sunrise tour of Angkor Wat + countryside bike ride). Grasshopper's tours are very well organized, from the pick-up in the morning, to the boat ride, to the snack and lunch break, and the bike ride and tour of the cu chi tunnels more generally, we were very happy with the entire day. Riding through the rice fields, forests, small villages, and along the canal was truly an amazing experience. Klas was a fantastic guide. He spoke great English and provided great insight into Vietnamese history and culture, in addition to extensive knowledge about the cu chi tunnels. Overall, I would highly recommend this trip to anyone who enjoys bike rides and wants to see the Vietnamese countryside. If there is one area for improvement, it would be to build in maybe 1 or 2 more stops on the bike ride for water breaks. It was over 90 degrees outside and we did two 45 minute sessions without stopping, so any additional break would have been welcome.