Group Bookings Group Booking Information? Find out more about what we can offer your group. What is a size of a group booking? To receive discounted travel, a group must consist of 20 full paying passenger. How to make a group booking? For us to reserve a booking a 50% deposit is required, unless otherwise agreed. Payment of group bookings? Confirmation of numbers and final payment is due 14 days before departure unless agreed otherwise. Groups Terms & Conditions Terms & Conditions can be Found Here.