Focus: Teamwork and trust
Tools: Several blindfolds or scarf's
Split everyone up into small groups of about 3 or 4 and get them to spread around the hall. Ask each of them to blind fold one of their team members. While one of their group is blindfolded the other group members design a mini obstacle course (use bags, people or cones). Then get the non-blind folded members of the team to direct the other skaters through the obstacle course.
Direction can be done verbally without contact, or without words and by guiding the person physically through, or both. This is to help develop trust in team mates decisions and instructions.