For most of the last twenty years, if you lived in Sunnybrae and needed to burn off a Saturday morning with kids in tow, the answer was almost automatic: load up the car, pay the six dollars at the gate, and let them loose on the castle tower and the purple sea creature at Magic Mountain Playground. That routine ends tomorrow.
Starting September 14, 2026, San Mateo County is closing Magic Mountain Playground at Coyote Point Recreation Area for a full rebuild. The playground and the picnic sites around it are locked down. The parking lot directly behind it, along with its EV chargers, closes too. Picnic reservations in that section will not open again until spring 2027. That is not a weekend inconvenience. That is most of a school year.
If you caught earlier coverage of this project back in the spring, you may have a different timeline in your head, and it is worth untangling why.
What the Spring Announcement Actually Said, Versus What Closed This Week
When the county approved the $3.8 million replacement in late March, the framing was upbeat and a little vague on dates. Coverage at the time quoted county officials saying work would begin that spring and be finished by the end of 2026. That is a normal way to talk about a construction project before ground has been broken. It is also, as it turns out, not what happened.
| What was said in March 2026 | What the county's closure notice says now | |
|---|---|---|
| Construction start | "This spring," expected mid-2026 | September 14, 2026 |
| Picnic area reopening | "By the end of the year" | Spring 2027 |
| Scope of closure | Not specified | Playground, surrounding picnic sites, rear parking lot, EV chargers |
Six months of slippage on a project like this is not unusual, and it is not a criticism of the county's parks department, which is managing 149 acres of shoreline park that draws more than half a million visitors a year and still needs to stay functional during construction. But if you had "back to normal by fall" penciled into your calendar, the county's own notice this month says otherwise.
What's Actually Closed and What Isn't
The closure is narrower than "Coyote Point is closed," which is easy to assume if you only see the headline. Here is the real split:
Closed starting September 14, 2026:
- Magic Mountain Playground itself
- The picnic sites immediately surrounding it, not reservable again until spring 2027
- The parking lot behind the playground, including its EV charging stations
Still open:
- More than 900 of the park's roughly 1,000 parking spaces
- The marina, waterfront promenade, and beach
- CuriOdyssey, the science museum and zoo, which sits in its own building
- The Bay Trail segment running through the park
- RV camping areas and the restroom nearest Magic Mountain
There is a second, unrelated wrinkle worth knowing about if you are planning a trip: the smaller playground near the Beach Picnic Area also closes for maintenance starting September 15, a separate notice from the Magic Mountain project and not tied to its six-month timeline. Do not confuse the two closures when you are mapping out a visit.
What Gets Built in Its Place
The replacement is not a like-for-like swap. It is funded through a mix of federal Community Project Funding and San Mateo County's Measure K, the voter-approved half-cent sales tax that pays for local priorities, and the design itself came from a genuine public process rather than a closed-door decision. The county ran a survey in 2025 that pulled more than 450 responses on what a new playground should include. That fed two finalist concepts, and in a follow-up vote this year, more than 840 people weighed in. Seventy-eight percent picked the concept titled "Magical Adventure in a Seaside Land."
If your kids have opinions about the current purple sea creature, the county says it is being incorporated into the new design in some form. The rest of the structure, including access and circulation improvements around it, is new. The playground that opened in 2006 was, in the county's own description, at the end of its useful life and no longer meeting current safety and accessibility standards. This is a real upgrade, not a downgrade dressed up as one. It is just going to take longer than the spring announcement implied.
Where Sunnybrae's Own Backyard Comes In
Here is the part that changes for the next six months if you live in Sunnybrae rather than just visit the area occasionally: your neighborhood already has a smaller, quieter version of the same idea, and it never needed a $6 parking fee or a construction fence.
Sunnybrae Park sits at 625 Folkstone Ave, fully fenced, with swings, slides, climbing structures, picnic tables, and a dog-friendly area for leashed pets. It is not going to replace a half-day at Coyote Point for a family chasing a big outing. But for the after-school hour, the Saturday morning before errands, or the stretch of afternoon when a six-month closure at the bigger park is simply inconvenient, it was already doing exactly the job Magic Mountain is now unable to do.
Nextdoor's own community data backs up how central this kind of thing already is to how Sunnybrae residents describe their neighborhood. The interests they rank highest include walking, dogs, gardening, and hiking and trails, and the reasons they cite most often for liking where they live are that it is dog friendly, family friendly, and walkable, with parks specifically called out. That is not a coincidence. It is the reason a fenced quarter-acre with a sandbox and a leash-friendly lawn has quietly mattered more than its size suggests, long before a bigger park down the road went under construction.
If You Still Want the Bay
None of this means Coyote Point is off the table. If the draw was always the water rather than the playground, almost everything you came for is untouched. The Bay Trail segment through the park connects south toward Seal Point Park and on to the San Mateo Bridge, a flat, paved stretch of roughly two and a half miles that is open to walkers, runners, and cyclists with leashed dogs the whole way. CuriOdyssey is unaffected by the construction since it sits in a separate building. The marina, the promenade, and the picnic areas outside the fenced construction zone are all still accessible, and more than 900 parking spaces remain open across the park.
A practical version of a Coyote Point visit for the next six months looks like this:
- Park near the promenade rather than the old playground lot, which sits closest to the construction fence.
- Walk the beach promenade toward the marsh for views of the marina and shorebirds.
- Spend an hour or two at CuriOdyssey if you want an indoor stop, especially on a hot or windy day.
- If there is energy left, ride or walk the Bay Trail south toward Seal Point Park, a flat and shaded-in-parts route that has nothing to do with the construction zone at all.
That is a full outing at Coyote Point with zero time spent looking at a fence.
What This Means for the Season Ahead
Six months is long enough to change habits. Families who built their weekend rhythm around Magic Mountain now have a real choice to make between driving to a partially closed park or walking a few blocks to the one that has been sitting quietly in the neighborhood the whole time. Neither is wrong. But the assumption that Sunnybrae's park is the backup and Coyote Point is the destination gets a little less obvious for the next two seasons, and that is worth knowing before you plan your first fall Saturday.
If you are curious about the rest of what makes Sunnybrae tick, from its Eichler-era streets to how it compares with the neighborhoods around it, we put together a fuller look at Sunnybrae's housing stock and character worth a read.
Luis Vasquez has spent years watching Sunnybrae's daily rhythms up close, from which park fills up first on a Saturday to which streets stay quiet after the fog burns off. If you are thinking about buying or selling on the Peninsula and want someone who actually knows these blocks, reach out to Luis Vasquez for a free Buying & Selling Guide and a market conversation whenever you are ready.
