We had the Deluxe Mekong day trip, plus the Cu Chi tunnels and city tour. The Mekong tour was so interesting,seeing the brickworks factory, the family at the coconut "place" and ride through the villages on the local taxi was memorable, motor bike with "cart" attached. All in all we are very happy with Buffalo tours. More than happy to recommend them, and planning to visit again next year for a longer tour from Hanoi down.
Sharon - New Zealand