Thx for your questions on the Western.....
The KW Jet Ski Excursion is fairly vigorous, so if you want to do it with your sons be prepared for a highly energetic ride where they hang on for their lives!!
They also have shorter rentals where you can rent for an hour or so and ride at your own pace....I believe that the tour that we booked was about a $100 per person which was pricey! Renting by the hour might be a better idea for your family!
Other excursions which I recommend for the Western......
In GC, see Stingray City if you can, it's a once in a lifetime experience...your kids may be frightened but WOW, what a cool experience......I guess it depends on their quota for scary yet exciting threshold quota!!!
In Cozumel, we did the Fury Catamaran one year, then the Jeep Tour the following year, again, it's up to you what your family would enjoy most!
In CC, the family beach is wonderful, snorkeling is extra, also the floats.
There is a lot of fun activities right there and probably that's all you need to rent to have a great day.
Best wishes for a wonderful cruise!!!
