If you are looking for something for the two of you to do together.....Google spearfishing Cozumel and talk to Leo. He takes you out to freedive/snorkel and spearfish. My son and I did that a couple of years back and we had a great time. Didn’t get any fish ourselves but Leo got 3 fish and 3 lobsters. We didnt have time to do it because we were rushed to get back to a cruise ship but he can arrange to get the fish cooked for you at his friends restuarant. He also can hook you up with a partner of his Alejandro who can take you out diving. We went with him last year and we were the only ones on the boat!! Which was great because my son had not been diving long and being able to dive with a DM for just he and I was priceless. Allowed me to see much more without having to keep such a close eye on him. If you do it please tell Leo that Firefighter Bill from Alabama said hello.