- The list below includes 774 free or cheap things to do in or near Union City, California, including 130 different types of inexpensive activities like Parks, Playgrounds, Movie Theaters and History Museums.
- From Drigon Dog Park to Veteran's Memorial Park - Hall Ranch, there are a variety of budget-friendly attractions in Union City and in nearby cities within 25 miles like San Francisco, Pacifica, San Jose and Berkeley.
Sea Breeze Park is a public park offering a large selection of recreational amenities and facilities for its visitors to enjoy. These amenities include two (reservable) baseball diamonds, a playground structure, and a large amount of open play space.
A 25-screen movie theater, Century 25 Union Landing and XD displays first-run feature films using digital projection and RealD 3D. The theater provides stadium seating, arcade games, an XD auditorium and a cafe with food and drinks.
The main center for community leisure services on the western side of town is the Holly Community Center. Along with fitness facilities, the site which includes an auditorium that is able to hold up to 250 people can be rented for private parties.
History of the local area is collected and preserved within the Union City Historical Museum. The organization that supervises the museum also works at collecting oral histories from those living in the community.
Running alongside the banks of Alameda Creek, the Alameda Creek Regional Trail stretches 12 miles, from Niles Canyon to San Francisco Bay. The trail is suitable for running and biking, and motor vehicles are not allowed.