The Santa Barbara Maritime Museum, in collaboration with Semana Nautica, is hosting its annual Kardboard Kayak Races on Saturday, July 12, Noon-3 p.m. Teams of up to four will get two sheets of cardboard, one roll of tape, a marker, a utility knife, a yardstick, and one hour to build a completely functioning kayak. After creating their watercraft, each team must paddle out to a buoy and back — hopefully without sinking. There are two different challenges: the Family Fun heat and the Paddling Pros heat. The winners from each heat will win prizes. The event takes place at West Beach across from Sambo’s Restaurant and East of Condor Express, which are both sponsors of the race. The number of teams for the race is limited; to register, call 962-8408 x115 or visit sbmm.org.