Our role, as the professional team building event organiser, is to create a stage and give the players everything they need to have a fun and enjoyable experience. The rest is up to them.
Successful team building away days create memories of fun shared experiences and that is one of the foundations of team building. It's no different from friendship. Your friendships are built on a series of good shared experiences, often hundreds of them going back years. They make a chain that is hard to break.