Mark your calendars, San Francisco — Thrive City is hosting a free Spring Golf Day, complete with a 9-hole mini-golf course and complimentary golf simulators. And yes, before you ask, it's actually free. No hidden fees, no "suggested donations," no $18 parking-that's-technically-separate nonsense.

Thrive City, the outdoor plaza adjacent to Chase Center in Mission Bay, is rolling out the green carpet for what looks like a genuinely fun, zero-cost afternoon. You get nine holes of mini golf and access to golf simulators, all without dropping a dime. In a city where a mediocre sandwich runs you $19 and a one-bedroom apartment costs more than a mortgage in most American cities, we'll take every free W we can get.

Here's what we like about this: it's a private venue offering a community event without taxpayer dollars propping it up. No city grants, no bloated recreation department budget line items, no six-figure "program coordinator" salaries — just a business activating its space and drawing foot traffic the old-fashioned way. That's how community engagement is supposed to work.

Is it also a marketing play to get people near Chase Center and its surrounding restaurants and shops? Obviously. But that's the beauty of it — everyone wins. You get free entertainment, local businesses get eyeballs, and not a single dollar of public money was harmed in the making of this event.

If you've got kids, a date to impress on a budget, or just want to pretend you're Phil Mickelson for an afternoon, Thrive City's Spring Golf Day is worth the trip to Mission Bay. Sometimes the best things in San Francisco really are free — they're just exceptionally rare.