HCHS What Floats Your Cardboard Boat Race - The Shoofly Magazine

Food Bank's Float Your Boat race welcomes cardboard boat engineers

HCHS What Floats Your Cardboard Boat Race - The Shoofly Magazine

Cardboard boats sink or float at Campus Lake Saturday, Entertainment

HCHS What Floats Your Cardboard Boat Race - The Shoofly Magazine

Cardboard boats to set sail Saturday in races at Greers Ferry

Fourth Annual Float Your Boat

HCHS What Floats Your Cardboard Boat Race - The Shoofly Magazine

Cardboard Boat Regatta returning to Cedar Rapids Freedom Festival lineup

Daring Cardboard Boat Races