10:00 am - 6:00 pm 3rd Annual Opening of the Beaches May 16 @ 10:00 am - 6:00 pm 3rd Annual Opening of the Beaches Nassau County is ready to welcome summer in a big way and invites residents and visitors alike to celebrate at the annual Opening of the Beaches on Saturday, May 16, 2026, from 10:00 a.m. to 6:00 p.m. at Main Beach Park in Fernandina. This FREE, family-friendly tradition transforms the shoreline into a vibrant hub of […] Free