My wife and I just enjoyed a beautiful bike trip as part of our day tour to the Mekong Delta from HCMC. Our guide, Loc was excellent. Very knowledgeable and really went above and beyond to show us some out of the way and non touristy experiences so we could feel immersed in the local culture, which is what we really enjoy when we travel.
We added a nice 90min bike tour to our Mekong Delta trip and were able to ride around a beautiful island seeing how the local people live. Loc was very enthusiastic and helped to make the bike ride safe and pointed out all the local fruit trees and flowers along the way. It was a great way to get off the beaten path in the Mekong Delta and I would highly recommended a bike excursion as part of your Mekong experience.