Why would there be a $50 charge for Shore Excursions on my onboard account?

If you book a shore excursion and chose the $50 shore excursion nonrefundable credit as part of the Free at Sea™ promotion, you will notice a $50 credit in your onboard account.

In the rare event your shore excursion is canceled, your onboard account will reflect a $50 charge, which will zero out the $50 credit per port.