Gallery: Characters Pack Park at IB's Largest Halloween Carnival

Hundreds of people attended the first Boulevard Boo Halloween carnival and costume contest Saturday afternoon in Veterans Park.

Fairies, a South Korean rapper, an Aztec king, elephants, sushi, the Cookie Monster, a zombie bride and groom and many more took part in the costume contest.

About 200 took part in the costume contest.

There was also a cake walk, fortune teller, haunted trick-or-treat, photo booth and ring toss. Groups like the Boy Scouts, Friends of the Imperial Beach Library, Tijuana National Estuarine Research Reserve and Relay for Life also had information booths.

A costume contest that started four years ago has grown from less than 100 people in the library its first year to near 1,000 organizers in nearby Veterans Park for the Boulevard Boo.

The Halloween celebration started by libary staff and volunteers grew with support from the City of Imperial Beach and more than a dozen community groups, said librarian June Engel.

Volunteers from the U.S. Navy's Surface Warfare Medical Institute, San Diego Attachment and Boys & Girls Club of South County arrived at the park around 7 a.m. Saturday, she said.

SeaWorld also sent penguins and Shamu to the carnival. Watch the video included here to watch Shamu, the penguins and a werewolf dance to PSY's "Gangnam Style."

County Supervisor Greg Cox and Naval Base Coronado Commanding Officer Captain Gary Mayes made appearances. Imperial Beach City Councilmembers Lorie Bragg, Brian Bilbray and Ed Spriggs helped judge the costume contest.