Don Castro Swim Lagoon – Visitor Guide
You’ll find Don Castro Swim Lagoon open for weekend swims from May 24 to June 8, then daily through August 15. After that, weekend hours return until mid-September.
You can drive, bike, or take AC Transit Bus 95 to get there. Just a heads up—the entry and purchases now use a new cashless system.
Enjoy a spacious, safe swimming area with lifeguards on duty. There are also picnic spots and activities like fishing and hiking to keep you busy.
Ready for a full day of fun and relaxation? There’s plenty more to discover inside.
Don Castro Swim Lagoon Opening Dates
Although the Don Castro Swim Lagoon doesn’t open daily right away, you can enjoy weekend and holiday swims starting May 24 through June 8, 2026.
During this time, the Don Castro Swim welcomes visitors on Saturdays, Sundays, and holidays from 11 AM to 5:30 PM, with gates closing at 6 PM.
After June 8, daily swimming hours begin June 9 through August 15, 2026, giving you more chances to plunge in.
Following August 15, the lagoon reopens on weekends and holidays until September 14.
Keep in mind, a fee applies for entry, and pre-registration is recommended on busy days to secure your spot.
Knowing these opening dates helps you plan your visit and make the most of your swimming experience.
How to Get to Don Castro Swim Lagoon
With the swim season dates in mind, it’s time to plan how you’ll get to the Don Castro Swim Lagoon. Whether you’re driving, biking, or taking public transit, the Don Castro Regional Park in the Bay Area offers convenient access.
If you drive, use I-580 and follow the clear exit directions. Prefer public transit? AC Transit Bus Number 95 runs from Hayward BART to the park entrance, with just a 10-minute walk to the lagoon. Cyclists can enjoy dedicated bike lanes from nearby BART stations.
Keep in mind, free parking fills fast on busy days, so arrive early!
| Mode | Details | Tips |
|---|---|---|
| Car | I-580 exit, free parking | Arrive early on weekends |
| Bus | AC Transit Bus 95 from BART | 10-minute walk to lagoon |
| Bike | Dedicated lanes from BART | Safe and scenic route |
| Walk | From Bus stop | Short, pleasant walk |
| Hours | 11am–5:30pm swim, gates close 6pm | Plan arrival accordingly |
Using the Cashless Payment System at Don Castro
Starting May 16, 2026, you’ll need a credit card to make any purchases at Don Castro because cash won’t be accepted anymore.
This new cashless system is designed to speed things up, making entry and transactions quicker for everyone.
So, having your card ready when you arrive not only saves you time but also lets you enjoy the lagoon without any interruptions.
It’s a simple change that makes your visit smoother and hassle-free.
Cashless Payment Methods
Because Don Castro has moved to a fully cashless payment system, you’ll need to use a credit card to pay all fees starting May 16, 2026. This means all access fee transactions rely on credit card payments, ensuring a smooth and quick entry process.
To navigate this new system efficiently, keep these points in mind: Have your credit card ready for all purchases, from entry to rentals.
Plan ahead since capacity limits may restrict access during peak times.
And pre-register online on busy days to guarantee your spot.
Don Castro’s shift to cashless payment methods enhances convenience but requires you to adapt. Understanding these changes helps you enjoy your visit without surprises or delays at the gate.
Benefits Of Credit Use
Convenience takes center stage at Don Castro Swim Lagoon as the new credit card-only system simplifies every transaction you make.
By embracing cashless credit card payments, the park streamlines fee collection, slashing wait times and letting you dive right into the fun.
You won’t have to fumble with cash or worry about exact change, making your visit smoother and more secure.
This modern approach not only speeds up access but also enhances safety by minimizing physical contact.
Just remember to have your credit card ready, especially since capacity limits mean access might be restricted if you don’t pre-register.
Don Castro Swim Lagoon Facilities and Amenities
You’ll find that the Don Castro Swim Lagoon offers a spacious, chlorinated swimming area.
There’s a large shallow zone that’s perfect for kids to play safely.
Picnic tables and charcoal BBQs are available too, making it easy to enjoy a comfortable and fun day out.
Plus, accessible facilities and lifeguards on duty mean everyone can relax and enjoy the lagoon with ease and peace of mind.
Swimming Area Features
The Don Castro Swim Lagoon offers one of the safest and most family-friendly swimming spots around. Its chlorinated and filtered water stays clean from late May through September, so you know it’s well cared for.
When you visit, you’ll appreciate the well-maintained swim area that’s perfect for all ages, especially kids. Lifeguards are on duty during swimming hours, which really helps you relax while your little ones splash safely in the shallow section.
The lagoon runs daily from June 9 to August 15. Outside this period, there’s limited access on weekends and holidays.
Here’s what you’ll find:
- A large, shallow area that’s great for children to play and swim safely.
- Lifeguards stationed throughout the swim area during open hours.
- Clean, chlorinated water that’s regularly filtered for your health and comfort.
Picnic And Accessibility
After enjoying the safe and invigorating swim lagoon, you can head over to the picnic area, where family gatherings come to life around charcoal BBQs and sturdy picnic tables.
These amenities are available on a first-come, first-served basis, so arriving early helps secure your spot.
If you need extra accessibility, Don Castro Swim Lagoon has you covered. Beach wheelchairs can be reserved by calling the park office, and the restrooms and drinking water facilities are wheelchair accessible, ensuring everyone’s comfort.
While charcoal BBQs are perfect for grilling, remember portable gas grills are allowed only off the beach and grass.
To keep the area safe and clean, alcohol and glass containers are prohibited. This thoughtful setup makes your picnic both enjoyable and hassle-free.
Accessibility Features at Don Castro Swim Lagoon
Although accessibility needs can vary widely, Don Castro Swim Lagoon takes thoughtful steps to guarantee everyone can enjoy its invigorating waters and welcoming environment.
You’ll find a range of features designed with your comfort and safety in mind.
Here are three key accessibility highlights:
- Designated disabled parking spots near the entrance make arrival hassle-free.
- Wheelchair accessible restrooms and drinking stations assure convenience throughout your visit.
- Free beach wheelchairs are available on a first-come, first-served basis, though an assistant is required to help you navigate the sandy areas.
Additionally, the swim area includes a large shallow section roped off for children’s safety.
Accessibility routes are clearly marked on the park map, so you can explore confidently and enjoy every moment at the lagoon.
Swimming Safety Tips for Don Castro Visitors
When you plunge into the sparkling waters of Don Castro Swim Lagoon, always stick to designated swimming areas under the watchful eyes of lifeguards to keep your visit safe and enjoyable.
These lifeguards maintain swimming safety by monitoring activities and responding quickly to emergencies.
Pay close attention to capacity regulations; once the swim lagoon reaches its maximum occupancy, no new entries are allowed.
Remember to follow capacity limits to ensure everyone’s safety—entry stops when maximum occupancy is reached.
So, it’s a good idea to pre-register on busy days to confirm your spot.
If you’re with children, keep them in the large shallow area roped off for their safety.
Also, familiarize yourself with park rules, like no alcohol or glass containers, to help prevent accidents.
By following these guidelines, you’ll enjoy a fun, secure day at the swim lagoon.
It’s all about keeping things safe so everyone can have a great time.
Picnic and Grill Areas Near the Swim Lagoon
Two picnic areas near the Don Castro Swim Lagoon offer plenty of picnic tables and charcoal BBQ grills on a first-come, first-served basis. They’re perfect for family meals and gatherings.
You’ll find mature shade trees creating a cool, shaded area that’s ideal for relaxing while you cook and eat.
The areas are accessible, with beach wheelchairs available through the park office, also on a first-come, first-served basis.
Here’s what you can expect:
- Multiple picnic tables nestled under leafy trees for comfort.
- Charcoal BBQs ready for use. Just bring your own charcoal.
- Portable gas grills are allowed but only off the beach and grassy spots.
Fishing, Trails, and Other Activities at Don Castro Park
If you’re looking to enjoy more than just swimming and picnicking, Don Castro Park offers plenty of other activities to explore. You can try fishing along the lake’s designated shores, where trout and bass await in a peaceful setting.
Over five miles of scenic trails invite you to hike, offering panoramic views of the Hayward Hills and connections to the Bay Area Ridge Trail.
Beyond swimming in the man-made lagoon during summer, you can also enjoy horseback riding in select areas, adding variety to your recreation options. Ample picnic areas with charcoal grills provide perfect spots for family meals after a day filled with outdoor fun.
Whether you’re fishing, hiking, swimming, or grilling, Don Castro Park has something to keep everyone engaged.
Frequently Asked Questions
Are Pets Allowed at Don Castro Swim Lagoon?
Pets aren’t allowed at the swim lagoon, so you won’t find pet-friendly areas right there.
The pet policy keeps dogs on leashes in other parts of the park, ensuring clean, safe visitor experiences.
You’ll need to follow leash requirements and always practice pet waste disposal to keep the park enjoyable for everyone.
To make the most of your visit, consider leaving your pet at home or using designated dog-friendly spots nearby.
Can I Rent Swim Gear or Equipment Onsite?
You won’t find swim gear options or equipment rental onsite here, so you’ll want to bring your own floats, goggles, and life jackets.
The equipment rental policies focus mainly on kayaks and paddleboards, not swim gear. Pricing details for these rentals vary seasonally, and safety regulations require life jackets for water activities.
For beach wheelchairs, you must arrange them in advance, as availability is limited and offered first-come, first-served.
Is There Wi-Fi Available at the Lagoon?
There’s no Wi-Fi connectivity at the lagoon, so you won’t find access points nearby. Signal strength depends entirely on your mobile carrier, and it can vary quite a bit.
For the best experience, make sure your device supports your carrier’s network bands.
Since the park encourages unplugging, it’s a good idea to plan ahead and use mobile data if you need internet access.
Honestly, you’ll probably enjoy the natural setting more without all those digital distractions anyway.
Are There Any Food Vendors Inside the Park?
You won’t find food vendors inside the park, so it’s best to pack your own snack choices.
Picture yourself settling at a picnic table, the sun warming your face as you enjoy homemade sandwiches and fresh fruit.
Remember, food restrictions mean no alcohol in the swim area, so bring drinks that follow park rules.
After your visit, nearby restaurants within three miles offer tasty picnic options if you want a change from your packed meal.
What Are the Rules for Group Reservations or Events?
You’ll want to check group size limits before booking, as capacity can affect access.
The reservation process involves contacting the park office early, especially for weekends or holidays, to secure your spot and event timing.
Catering options are limited, so plan accordingly or bring your own food.
Keep in mind the cancellation policy may require advance notice.
Planning ahead guarantees your event runs smoothly without surprises.
Conclusion
Ready for an invigorating day at Don Castro Swim Lagoon? With easy access, cashless payments, and plenty of facilities, your visit will be smooth and fun. Whether you’re swimming, picnicking, or exploring trails, there’s something for everyone.
So, why settle for ordinary when you can plunge into an extraordinary experience? Don Castro isn’t just a lagoon, it’s your next favorite getaway spot waiting to be discovered. What are you waiting for?
