Living in a place that sees lots of cruise ship tourism, you may enjoy the rv more. You can stay longer and enjoy a place more. So many cruise ships set up artificial experiences for their passengers with little real interaction. There are also some Eco considerations with cruise ships. A lot of the ones that come here have torn up the reef and then there's the sewage. It's treated, but still... All that said, you should totally do what swoons your heart, and if you find yourself hitting Belize on a cruise, I'd love to meet y'all!