Personally, we do not book excursions through Carnival Cruise Lines because they are twice the price. Check out different excursions on the website Viator. When you open the link, you can search each destination and tons of excursions for that particular port will appear.

Link to Viator: https://www.viator.com/

*You are not obligated to book excursions. You can even wait until the day we dock into the different ports to see exactly what you want to do for that day.