Sink or Swim Boat Building Challenge!
Your group is divided into teams (of approximately 5 persons) and handed their materials; cardboard, plastic, scissors, tape and marker pens.
Each team has a set amount of time (normally around an hour) to build their boat using the supplied materials.
The boat cannot be launched until the team has come up with a song, a dance and a speech to launch their boat with.
After the allotted time, each team presents their boat to the rest of the group, and then they are put to the test at sea! At the end the winning boat is chosen and the winning team handed their prize.