Virden said that some local radio stations compete. One team two years ago had a "Paris Hilton jailbreak"-themed ship. They all wore prison jumpsuits. The local Navy sailors make their cardboard look like something the military would actually use. Others design kayak-like vessels.
"It brings a lot of people out into the community," Virden said.
One of the oldest and best-known summer events is the Nathan's Famous Fourth of July International Hot Dog Eating Contest.
Nothing says summer like stuffing your face full of hot dogs until you can't eat anymore.
The waterfront event is probably the best-known competitive eating competition. Only the reigning champ or somebody who earns their way in through other competitions is allowed to compete. In the last few years, ESPN (also owned by Disney) started broadcasting the competition.
Last year's challenge was won by Joey Chestnut of San Jose, Calif., who beat Takeru Kobayashi of Nagano, Japan in a five-dog overtime. Both men had ate 59 Nathan's dogs and buns in the 10-minute regulation match.
Chestnut finished his overtime plate of five hotdogs in 50 seconds, seven seconds before Kobayashi.
After all that food, we just hope they didn't try to go on any of the rides at Disneyland, let alone all of them.