Yep, first 2 people in each cabin pay the full fare. The 3/4/5 passenger pay the reduced rate depending on their age. If you have 1 adult, 1 teen and 1 child 3-12 make sure the teen is the 2nd name you provide. That way you pay 2 adults and one lower child fare. If you book the younger person second then you still pay 2 adults and the teen rate is higher than a child.