Do I need to book a shore excursion?

Guests are not obligated to book a shore excursion and free to explore ports of call on their own. While onboard the ship, all guests will be advised as to when they should be back on board the ship prior to sailing. Generally, the ship's all aboard time is scheduled approximately 30 minutes prior to sailing; this time should be verified once onboard and will be posted near the ship's gangway. The ship will not wait for any guest faring on their own, as it is their responsibility to be onboard before the ship's scheduled departure time.