Saturday, July 13
The Milk Carton Derby is one of the signature Seafair events — a hilarious ramshackle race across Greenlake where all the boats are made out of recycled milk cartons. Start building now: Smith Brothers Farms will give you as many cartons as you need for free if you ask.
9:30a-4p. Green Lake, 7201 E Greenlake Dr N, Greenlake (206-684-4075)