Cardboard Boat Race

Give each team an equal supply of cardboard and tape and a fixed build time to construct a boat.

Teams design and assemble their boat, reinforcing seams and joints so it can hold at least one paddler.

At race time, teams carry their finished boat to the water's edge and launch it without other assistance.

One or more team members climb aboard and paddle toward the finish line using hands or paddles.

A boat that takes on too much water and sinks is out of the race, though paddlers may swim the rest for fun.

The first boat to have its paddler cross the finish line still afloat wins the race.