Sebastian Clambake — Sebastian, Florida

The Sebastian Clambake, billed as a lagoon festival, is a weekend seafood and music festival held each November at Riverview Park on the Indian River in Sebastian. It is produced by the Sebastian Clambake Foundation, a nonprofit founded in 2002 that describes the event as a celebration of the lifestyle shaped by the Indian River Lagoon. Admission is free; tickets are sold on site for food and official Clambake t-shirts, and the foundation states that proceeds go to regional nonprofit programs and nonprofit capital improvement projects.

The setting is the city's main waterfront park. The City of Sebastian describes Riverview Park, at 600 U.S. Highway 1 on the corner of U.S. 1 and C.R. 512 (Sebastian Boulevard), as the primary event and gathering point for the city, and lists the Clam Bake Festival first among the park's major annual events, alongside the Sebastian Fine Arts and Music Event, the 4th of July Freedom Festival and Shrimpfest and Craft Brew Hullabaloo.

The first Clambake was held in 2002. A 2009 Vero News profile describes it as established that year as a lagoon festival celebrating the culture and traditions of life on the Indian River, the central and historic heart of the Sebastian community. The same article explains the November date: the Clambake is now held in November to avoid the threat of hurricanes, which caused the cancellation of the event in 2004. In 2009 the festival ran three days, from 2 to 9 p.m. Friday, 10 a.m. to 9 p.m. Saturday and 10 a.m. to 5 p.m. Sunday, with $1 tickets for food, beer and t-shirts.

The early program mixed seafood with lagoon sport. Vero News listed a kayak poker run, a wacky raft race, a chowder cook-off, volleyball tournaments and a boat show for the 2009 Clambake, and a 2010 Vero News report added historic re-enactments and boat rides for the November 5 to 7, 2010 edition. The 2015 festival included a children's literacy reading of stories of the 1715 Spanish Plate Fleet inside a replica of the Atlantic shoreline, according to Vero News, a link to the Treasure Coast shipwreck history offshore of Sebastian.

The schedule has stayed in early November. Sebastian Daily reported the 2017 festival for November 3 to 5, 2017 at Riverview Park, and the 18th Annual Clambake Lagoon Festival for November 5 to 7, 2021, from 2 to 9 p.m. Friday, 11 a.m. to 9 p.m. Saturday and 11 a.m. to 5 p.m. Sunday. The foundation's current listing for the 23rd annual Clambake on November 7 and 8, 2026 shows a two-day format, Saturday 11 a.m. to 9 p.m. and Sunday 11 a.m. to 5 p.m.

Clams are the center of the menu. Vero News listed steamed and fried clams, clam chowder and linguine with red clam sauce at the 2009 Sebastian Clambake, along with peel and eat shrimp, fried fish and sausage and pepper sandwiches. Coverage of the 2015 edition in Vero News described chowder, steamed clams, clam strips and clams over linguine. In 2017 Sebastian Daily reported crab cakes returning after their debut the year before, and two craft beers brewed exclusively for the event by Pareidolia Brewing Co.

Beyond food, the Clambake at Riverview Park has combined live local bands, a kids zone and craft vendors. A 2015 Vero News preview counted nearly 100 vendors along with a free kids zone and live entertainment. The 2015 recap noted performances by the Sebastian Police K-9 Unit and the Sebastian Sharks Drumline, and Sebastian Daily listed the Sebastian River High School Drumline and a Sebastian Muscle Cars display for 2017. The foundation vendor rules bar vehicles and pets from the park during the event and require vendors to be ready by 10:00 AM on Saturday.

The Sebastian Clambake Foundation is a coalition of local service groups. In 2009 Vero News described it as a nonprofit of nine member service organizations, including the Boys and Girls Club, the Knights of Columbus, the Sebastian Inlet Sail and Power Squadron, the Sebastian Property Owners Association, the Sebastian Soccer Association and the Sebastian River High School Athletic Boosters. The article reported that the foundation's by-laws stipulate that the money stays within Sebastian, and that volunteers from the community make up the entire labor force. A 2015 Vero News report put the volunteer count at more than 600 each year. The foundation states on its sponsorship page that it is a 501(c)(3) nonprofit organization.

Each year member organizations choose beneficiaries from applications. In December 2009, Vero News reported that the festival helped raise almost $60,000, split as $58,750 in checks among six groups, including $10,250 each to the By the River senior facility, the Sebastian Soccer Association and the Boys and Girls Clubs of Indian River County, and $7,500 to VFW Post 10210 to relocate its Veterans Memorial to County Road 512. The 2010 beneficiaries were the Sebastian River High School Rowing Club, American Legion Post 189, Sebastian Little League and By the River, and the 2015 beneficiaries were American Legion Post 189, the Sebastian Elks Club and the Sebastian River High School Crew boathouse project, according to Vero News. For 2017, Sebastian Daily reported $2,500 program grants to seven organizations, among them the Ecumenical Food Pantry and Sebastian River High School's Chum Bucket program, plus capital grants to groups including the Sebastian Soccer Association and St. Sebastian Catholic Church.

The running total has grown with each report, and the sources give different figures for different dates. Vero News reported over $200,000 by 2009 and more than $280,000 by June 2010; Vero News reported more than $500,000 in 2015; Sebastian Daily reported more than $675,000 in both its October 2017 and October 2021 articles; and the foundation website now states that the Clambake Foundation has granted over $1,000,000 to local charities. Its beneficiary page describes two funding initiatives, one for nonprofit programs and one for nonprofit capital improvements, and lists the 2026 application deadline as extended to October 15, 2026.

Published estimates come from organizers rather than counts. The foundation's 2009 president estimated turnout of 35,000 to 60,000 people for that year's Clambake, Vero News reported, and a 2015 Vero News report gave an estimated 40,000 to 60,000 attendees at Riverview Park. For scale, the U.S. Census Bureau ACS 2023 counts 25,759 residents in Sebastian, so organizer estimates exceed the city's own population; no independent attendance count was found in public sources.