Short boat trips in Ben Tre

Hello! We have arranged for a private transport to take us from HCMC airport to Can Tho and were planning to stop at My Tho or Ben tre for a short boat trip on the way, but I can't find any information about how to do this. I know My Tho is touristy so that's why I thought of Ben Tre, but we have a short time only -about 1 or 1 1/2 h for a short ride. Do you think this is doable? THanks!