Teens can experience the cruise with their peers with non-stop fun and always accompanied by Costa staff. Fun for everyone. That's why teens (ages 12 to 17) have their own Teen Club, divided into two age groups: Teen Club Junior (ages 12-14) and Teen Club (ages 15-17). These age groups help to create new friendships and the opportunity for your children to enjoy their vacation to the fullest. Many fun events. Among the most popular events are the dance and music classes, sports tournaments, pool parties with a midnight swim, disco games and themed dinners.