I haven't done snuba but I think it is pretty entry level. I don't see the ship or cabo operator refusing the business unless he is in a wheelchair. As long as it doesn't hurt their equipment, like a 400 pound person on a horse, they should be ok. I was considering the same or a snorkel trip. I did Cabo before on the Pride and you will have plenty of time after your excursion to shop and beach. I'm planning to go June 8th, what date is your family going on? I'm taking my daughter and her friend for her HS graduation. I know a bit about Ensenada, the activities, ship, etc so if you have any questions, send them my way. I was on Paradise in June and can't wait for next year.