San Francisco is about to turn into a real-life treasure map, and the stakes are staggering — with thousands of dollars on the line.

A Marina District coin shop is dropping a fortune across the city, hiding 10 rare coins worth a combined $50,000 as part of its third annual scavenger hunt set for April 25.

Witter Coin, founded in 1960, is once again sending hopeful hunters racing through iconic neighborhoods in search of high-value prizes, including a jaw-dropping $25,000 Gold Rush-era gold coin.

The rules are simple but intense: starting at 7 a.m. on the day of the event, clues will be released “every hour on the hour” via the shop’s Instagram account, @wittercoin. Each riddle points to the location of one hidden coin.

The event coincides with National Coin Week and doubles as a promotional push for the business, but Chandler says it’s also about reconnecting the city with its roots.

“This city was built around the pursuit of gold,” Chandler told a local FOX affiliate. “We wanted to create something that brings that spirit back. Something real, tangible, and rooted in San Francisco’s history. These aren’t replicas. These are genuine, high-value coins.”

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Chandler has carved out a unique lane in the coin world, leaning into social media and live selling platforms like WhatNot, where he auctions off collectibles, from Liberty Head nickels to Morgan silver dollars, sometimes starting bids at just $1.

That approach has helped drive annual revenues between $4 million and $5 million.

Now, he’s taking that energy to the streets.

“Don’t be a spectator, be a prospector,” the shop teased in its Instagram announcement.

For one day only, San Francisco becomes the hunt, and the clock starts ticking at sunrise.