SAN DIEGO (NEWS 8) - Several hundred thousand people gathered in downtown San Diego Wednesday night to watch the 18th annual Port of San Diego Big Bay Boom Fourth of July fireworks show.
Roughly 500,000 people watched the show last year, according to the Port.
Attendees watched this year's spectacle from a variety of locations around the bay, including Shelter Island, Harbor Island,Embarcadero Marina Park North, Embarcadero Marina Park South, Cesar Chavez Park and the Coronado Ferry Landing.
The Metropolitan Transit System operated on a Sunday schedule, and added extra trolley service to accommodate the estimated 250,000 or more people that attend the Big Bay Boom.
The Big Bay Boom included 12,000 fireworks this year - worth over $300,000.
Enhanced service on the Sycuan Green Line between SDCCU Stadium and downtown San Diego will begin at 3:22 p.m. Trains will depart every 7 minutes until the start of the show at 9 p.m. On the UC San Diego Blue Line and Orange Line, trains will depart every 15 minutes throughout the day.
Frequent trolley service will resume on all three trolley lines after the Big Bay Boom concludes.
MTS asked passengers to adjust their departure times before and after the show to account for the crowds.
The North County Transit District will operate most buses on a Sunday schedule. BREEZE Route 408 will operate on a normal schedule.
COASTER and SPRINTER trains will operate on a Saturday schedule, with one change to SPRINTER -- the 11:33 p.m. eastbound train will be cancelled and an eastbound train departing out of Oceanside Transit Center at 12:33 a.m. will be added to allow those returning on the final northbound COASTER out of San Diego to connect with the eastbound SPRINTER.