From mid-January 2022, more is possible in terms of group size than before. So you can book a ship for your own group again. However, you must adhere to the government measures applicable at that time. Sailing ships.nl assumes that everyone is aware of the corona measures in force at this time when confirming a booking request.
If you want to cancel yourself, but the booking is allowed to go ahead according to the applicable government measures, the usual cancellation costs apply. See terms and conditions.