We will be cruising next May with our families on Harmony of the Seas. Our daughter will be the youngest at 2 and probably the only child with the rest as adults in their twenties or fifties. Our ports of call are Cozumel, Costa Maya, and Roatan as well as Perfect Day CocoCay. Excluding CocoCay, which, if any, of those ports would be best to just walk off the ship and eat and shop or go to a beach without an excursion? We do have some in our party with mobility issues, so a short walk would be preferable or we could do a taxi ride. If there's nothing in those ports that fit the bill for that, what excursions would you recommend for us that our 2 year old would enjoy and be able to do? Thanks for your help!