Photo above: Golden hills and oak woodland with a trail at Black Diamond Mines Regional Preserve, October 2022. Bcrawf123, CC BY-SA 4.0, via Wikimedia Commons.
Mostly outdoor stuff, and more of it than people expect. Antioch sits between two East Bay Regional Park District parks, Contra Loma and Black Diamond Mines, and a city marina on the San Joaquin River, and the city runs events through the year, including a holiday parade in the historic Rivertown district.
Nightlife is thin, and most errands mean a car. If your weekends run on trails, water and the occasional street festival, here’s what’s actually open and what it costs, checked September 25, 2026.
Where can I hike or fish in Antioch?
Contra Loma and Black Diamond Mines, both on the south side of town off Highway 4.
Contra Loma Regional Park, 1200 Frederickson Lane. The park district says its 775 acres include an 80-acre reservoir for year-round fishing, plus hiking, biking and nature study. Parking is $5 per vehicle. From Highway 4, take Lone Tree Way, then Golf Course Road to Frederickson Lane (East Bay Regional Park District, Contra Loma page, updated September 25, 2026).
Two things are closed right now. The Swim Lagoon is closed, and the Lake View Trail is closed at the cattle pond because of storm damage (same source). Check the park page before you go.
Black Diamond Mines Regional Preserve, 5175 Somersville Road. Most of the old coal mining district is inside the preserve’s nearly 8,533 acres, with trails for hiking, picnic spots and naturalist programs. Take Highway 4 to the Somersville Road exit and head south toward the hills. Parking is $5 per vehicle when the kiosk is staffed, which the park district says is seasonal, weekends and some holidays (East Bay Regional Park District, Black Diamond Mines page, checked September 25, 2026).
What’s inside Black Diamond Mines?
A visitor center built into the hill. The Greathouse Visitor Center sits in an underground chamber dug in the mid-1920s, with displays on the area’s coal and sand mining eras. It’s open Fridays from 10 a.m. to 2 p.m. and weekends from 10 a.m. to 4 p.m., and admission is free (East Bay Regional Park District, Black Diamond Mines page, checked September 25, 2026). The park district also runs guided underground mine tours; call (510) 544-2750 for details.
Can I keep a boat in Antioch?
Yes. The Antioch Municipal Marina has 310 slips, guest berthing, shore power, restrooms and showers, and a gas and diesel fuel dock. The city says it sits where the San Joaquin and Sacramento rivers meet, and it calls the marina a gateway to fishing and sailing spots like Sherman Lake and Winter Island (City of Antioch, Marina page, checked September 25, 2026).
Visiting boaters reserve through Dockwa. For monthly or permanent slips, the city says to call the marina office at 925-779-6957, and space goes first come, first served (same source). The city also runs an RV storage lot at Gentrytown Drive and Putnam Street.
What’s happening in Rivertown?
Rivertown is Antioch’s historic downtown on the river, and it’s where the city holds its holiday parade. The city is also planning a new outdoor public space along the river there. Its Rivertown Community Space page asks for public input on what the space should include, with no build date posted yet (City of Antioch, Rivertown Community Space page, checked September 25, 2026).
On the waterfront, the Antioch Public Fishing Pier and Waldie Plaza host the city’s fall fishing derby (City of Antioch, Kids Fishing Derby page, checked September 25, 2026).
What events are coming up in Antioch?
These are the upcoming dates on the City of Antioch’s Recreation Special Events page, checked September 25, 2026:
| Event | When | Where |
|---|---|---|
| Food Truck Thursday | Thursdays through October, 5 to 9 p.m. | Antioch Community Center parking lot |
| Kids Fishing Derby (free) | Saturday, October 10, 2026, 9 a.m. to 1 p.m. | Waldie Plaza and the Antioch Public Fishing Pier |
| Día de Los Muertos Celebration | Sunday, November 1, 2026, 3 to 7 p.m. | Nick Rodriguez Community Center, 213 F Street |
| Holiday Delites Celebration and Parade | Saturday, December 5, 2026, 1 to 7:30 p.m. | Rivertown |
The city notes the evening parade and tree lighting at Holiday Delites depend on the weather and are canceled in a heavy downpour (City of Antioch, Holiday Delites page, checked September 25, 2026). Dates can change, so confirm on the city’s events page the week of.
Are there city parks and a pool?
Over 30 city parks, and a water park that’s closed this year. The city says it has more than 30 parks open to the public from dawn to dusk, with a parks and trails map on its website (City of Antioch, Parks and Spaces page, checked September 25, 2026).
The Antioch Water Park, open since 1996, has five pools, three water slides and a spray park. The city says it’s closed for general admission for the 2026 season because of renovations, though swim lessons are still offered (City of Antioch, Antioch Water Park page, July 2026 update, checked September 25, 2026). Watch that page for reopening news before next summer.
What’s the honest downside?
Less going on after dark, and a lot of driving. Antioch doesn’t have a dense, walkable nightlife district, and many errands mean a car. For a big night out, plan on a drive or a BART ride toward Walnut Creek, Oakland or San Francisco. Our separate answer on the Antioch to San Francisco BART commute covers times and fares.
The upside of the same coin: both regional parks are reached from Highway 4 exits in town, and the river is right there.
Questions people also ask
Is Contra Loma swim lagoon open?
No. As of September 25, 2026, the East Bay Regional Park District’s Contra Loma page says the Swim Lagoon is closed. The 80-acre reservoir is still open for year-round fishing, and the park has hiking and biking trails, though the Lake View Trail is partly closed at the cattle pond from storm damage. Parking is $5 per vehicle.
How much does it cost to visit Black Diamond Mines?
Parking at Black Diamond Mines Regional Preserve is $5 per vehicle when the entrance kiosk is staffed, which the East Bay Regional Park District says is seasonal, weekends and some holidays. The Greathouse Visitor Center is free and open Fridays 10 a.m. to 2 p.m. and weekends 10 a.m. to 4 p.m., per the park page checked September 25, 2026.
When is the Antioch Holiday Delites parade?
The City of Antioch lists Holiday Delites Celebration and Parade for Saturday, December 5, 2026, from 1 to 7:30 p.m. in Rivertown, on its Recreation Special Events page checked September 25, 2026. The city says the evening parade and tree lighting depend on the weather and are canceled in a heavy downpour, so check the city’s page that week.
Is the Antioch Water Park open?
Not for general admission in 2026. The City of Antioch says the water park is closed for the 2026 season because of ongoing renovations and improvements, while swim lessons are still offered, per its July 2026 update, checked September 25, 2026. The park, open since 1996, has five pools, three slides and a spray park. Check the city’s page for reopening plans.
Your next step
Tell us what a good Saturday looks like for you. Trails, the river or a short drive to BART, we’ll show you Antioch homes near the places you’d actually use. Talk to an Antioch agent on our team or call (510) 949-5525.
More on Antioch: Living in Antioch, CA · What’s my home worth?
By Bill Davis, DRE #01880656, The Davis Team at eXp Realty, Antioch, CA. Updated September 25, 2026.
Sources
- East Bay Regional Park District, Contra Loma Regional Park page (updated September 25, 2026): ebparks.org/parks/contra-loma-regional-park (checked September 25, 2026)
- East Bay Regional Park District, Black Diamond Mines Regional Preserve page: ebparks.org/parks/black-diamond-mines-regional-preserve (checked September 25, 2026)
- City of Antioch, Marina page: antiochca.gov/359/Marina (checked September 25, 2026)
- City of Antioch, Rivertown Community Space page: antiochca.gov/608/Rivertown-Community-Space (checked September 25, 2026)
- City of Antioch, Recreation Special Events, Food Truck Thursday, Kids Fishing Derby, Día de Los Muertos Celebration and Holiday Delites pages: antiochca.gov (checked September 25, 2026)
- City of Antioch, Parks and Spaces page: antiochca.gov/1010/Parks-Spaces (checked September 25, 2026)
- City of Antioch, Antioch Water Park page: antiochca.gov/620/Antioch-Water-Park (checked September 25, 2026)