Viking River Cruises announced a ban on passengers below the age of 18 sailing on their ships on bookings made from August 1, 2018.
Line's update on the policy says that as of August 1, 2018, for all new bookings, all Viking passengers will have to be 18 years old to sail "on either the river or ocean product."
Passengers booked on Viking River Cruise prior to August 1, 2018 who are 12 years old or above will be allowed to sail on the currently booked trip.
The operator wrote it would continue to support the program until 2020 when all previously booked guests would have sailed. For all cruises booked after August 1, 2018 (regardless of the year of departure), passengers must be 18 years old on/before the day they are scheduled to embark on the cruise.