Cozumel is a very developed and safe cruise port and island, which makes it very accessible to strike out with local guides and tour operators. There are MANY activities to enjoy in Cozumel and some are not offered by the cruise line, which makes sense to explore a little online before heading to Cozumel. Transportation, infrastructure, services, authorities...all is on a great level to receive international tourism in a safe and comfortable manner. One of the only dangers are tourists renting Scooters (just DONT, these toys are not a safe way to get around in Cozumel...go with a car!!...spend the extra $30
) or Cars, and consequently produce accidents...drive aware and safe so it will be a BLAST visiting Cozumel. Good luck!