Long Beach seniors 65 years or older can receive a COVID-19 vaccine today until 5 p.m. without making an appointment by heading to the Long Beach Convention Center and simply waiting in line.

City health officials said they have about 500 doses of the vaccine to administer to those who show up. Seniors hoping to get the vaccine must show proof that they are Long Beach residents. If all the open slots are filled up, health officials said they would make an appointment for those who did not get a shot today.

Seniors can walk up to the Terrace Theatre where the fountains are. There is free parking below the theater off of Ocean Boulevard and Collins Way, according to health officials.

Officials didn’t immediately answer questions about why they decided to offer vaccines without appointments, something that’s typically been a requirement in the past, but recently other jurisdictions have criticized the state’s appointment system, My Turn, which is limited in how it can target vulnerable populations and screen out people misusing it to book appointments out of turn.

Though the state is insisting that counties prioritize vaccinating people living in the hardest-hit areas or those who work in specific front-line essential jobs, the My Turn system does not offer the flexibility to do so, Los Angeles County Public Health Director Barbara Ferrer said Wednesday, as reported in the Los Angeles Times.