Drive down Park Sorrento on a random Tuesday and the gate at the Calabasas Tennis & Swim Center looks like every other recreation facility entrance in the Valley. Nothing marks what's actually behind it: a lake that belongs to the city but isn't yours to walk up to whenever you feel like it. Calabasas Lake stays locked to general foot traffic three hundred and fifty-some days a year. This summer, the city has scheduled exactly eight days when that changes.
Most residents know the lake exists. Fewer know the mechanism that governs access to it, or that two of this year's eight open days are still ahead of us.
A Lake the City Owns but Doesn't Open
The Tennis & Swim Center itself has a specific history. It opened in 1969 as a private club, and the City of Calabasas bought it in 1994. That transaction gave the public a stake in the property, but it didn't turn the adjoining lake into a park you can visit on a whim. The city's own event pages spell out the policy in language that leaves no room for interpretation: the lake is private, and it "opens to the public only during City-sponsored concerts."
That's not a throwaway line. It's the operating rule behind everything else on the calendar. The greenbelt beside the water, the shuttle that runs from the Civic Center, the shade tents and picnic blankets that show up on concert nights: all of it exists because the city has decided, event by event, to let people in. Miss the window and the gate closes again until the next scheduled date.
What Already Happened This Summer
The 2026 season opened on June 14 with Billy Nation, a Billy Joel tribute act, kicking off the SunSets Summer Concert Series on the Calabasas Lake Greenbelt. From there the calendar filled in fast:
- June 14 – SunSets Summer Concert Series opening night
- June 26 – Dive-In Movie Night: Luca, poolside at the Tennis & Swim Center
- July 4 – the 49th Annual Lakeside Fun Run, Patriotic Pet Show, and Splash Party
- July 19 – SunSets Summer Concert Series
- July 24 – Dive-In Movie Night: Lilo & Stitch
- August 2 – SunSets Summer Concert Series
That July 4 lineup deserves its own footnote. A 49th annual event in 2026 means the fun run predates the city's 1994 purchase of the Tennis & Swim Center by roughly seventeen years. Residents were racing the greenbelt around Calabasas Lake before the city ever owned the ground under their feet. This year's edition ran the full course in one place: a 7:30 a.m. fun run along the lake's pathways, an 11 a.m. Patriotic Pet Show on the Lakeside Greenbelt, and a Splash Party at the pool from noon to 4 p.m. Three events, one continuous stretch of shoreline, no need to relocate across town between them.
The Two Nights Still on the Calendar
As of this writing, two dates remain before the lake goes back to being off-limits for the rest of 2026.
| Date | Event | Time | Entrance |
|---|---|---|---|
| August 14 | Dive-In Movie Night: Jungle Cruise | Evening, poolside | Calabasas Tennis & Swim Center, 23400 Park Sorrento |
| August 23 | SunSets Summer Concert Series (season closer) | 6:00 p.m., about 90 minutes | Calabasas Lake Greenbelt, entrance via Tennis & Swim Center |
The August 23 concert closes the SunSets series for the year. After that date, the lake reverts to its default status until the city publishes next summer's schedule.
The Rules That Catch People Off Guard
The two remaining events operate under different house rules, and mixing them up is the easiest way to have an awkward moment at the gate.
At the SunSets concerts, picnics are welcome. Bring a blanket, bring food, bring the folding chairs. What you can't bring: glass bottles, barbecues, or any kind of heating device. Shade structures are permitted as long as they don't block the view for the people behind you.
At the Dive-In Movie Night, the policy flips. Outside food and beverages aren't allowed at all, since the event is tied to the pool facility rather than the open greenbelt.
Both events route guests through a free shuttle from the Calabasas Civic Center at 100 Civic Center Way, and it's worth using it. Parking at the Tennis & Swim Center itself is limited, and the shuttle is the more reliable option on a night when the rest of the neighborhood has the same idea. One detail that trips up a fair number of dog owners: pets aren't allowed on the shuttle, with an exception carved out for service animals. If you're planning to bring the dog to the concert, you'll need to drive yourself and find parking on-site or nearby.
The city has also noted that its July 4 programming gets photographed and recorded for use in city communications. It's a small thing, but if you'd rather not end up in a promotional reel, that's useful to know before you show up in a lawn chair front and center.
Pair It With the Rest of the Season
The lake isn't the only thing on a schedule right now. Old Town Calabasas runs its farmers' market every Saturday from 8 a.m. to 1 p.m., with produce, baked goods, specialty foods, and handcrafted items from local vendors. It's a natural stop before or after a lake event, and treating it as a place to browse rather than a promise of any specific vendor keeps expectations realistic, since the lineup shifts week to week.
The Commons at Calabasas has its own summer rhythm running in parallel. Live music plays every Thursday from 5:30 to 8:30 p.m. between Toscanova and Marmalade Cafe, continuing through Labor Day weekend. Monday through Wednesday, several Commons restaurants, including BLVD Steak, Marmalade Cafe, Superba Food + Bread, and Toscanova, run prix fixe menus as part of what the property calls Commons Night Out, with Bacio di Latte offering half off affogatos from 3 p.m. to close on those nights.
None of this overlaps with the lake's own calendar, which is part of what makes late summer in Calabasas feel more organized than usual. A Thursday dinner at the Commons, a Saturday morning at the farmers' market, and an August 23 evening on the greenbelt cover three different registers of the same season without any of them competing for the same night.
What the Gate Actually Tells You
A guard-gated community image is easy to project onto a town like this one. Calabasas has plenty of that. But the lake works against the stereotype in a specific way: it's not an amenity reserved for people who live close enough to see it from their yard. It's a piece of city property that opens to anyone willing to catch one of eight scheduled dates a year, dog owners and drivers and shuttle riders alike, all funneled through the same gate at the same address.
That's a different kind of exclusivity than the one this area is known for. It's not about who gets in. It's about when.
If you're weighing what it actually means to live somewhere that treats a lake this way, that's a conversation worth having with someone who tracks these details year-round, not just in August. Denise Marks Group has spent decades in and around Calabasas, and we're always glad to talk through what a neighborhood like this one actually offers day to day, long before any conversation about buying or selling comes up. Request your free home valuation whenever you're ready to see what your own piece of this town is worth.
