You can find the cancellation policy details on the activity, tour or ferry experience page under FAQs section.
Rescheduling
You can reschedule the date or time of your activity, tour or ferry service (or add or remove guests) within 24 hours of booking, and up to 7 days before the experience is scheduled to start. If you reschedule an activity, tour or ferry service, the cancellation policy is based on the original purchase time.
Cancellations due to weather
Many activities, tours & ferry services are weather-dependent. If your booking needs to be cancelled or rescheduled, you will be notified by email or phone of these changes at least 24 hours before their scheduled to start. If a reschedule is not possible, you will be entitled to a full refund.