Once Upon A Bay artwork

Nature · Michael Herz & Kate Josephs

Once Upon A Bay

by Michael Herz & Kate Josephs

Michael Herz founded Baykeeper and spent decades defending the health of San Francisco Bay. His wife Kate fell in love with it from 3,000 miles away — through his stories. Now they live on a trawler in San Pablo Bay and are sharing that trove with the world. Shipwrecks. Whale migrations. Hippies, fish tales, courtroom battles, and secret CIA vessels. ONCE UPON A BAY explores the natural and human history of one of the most extraordinary bodies of water on earth... and the people fighting to protect it.

Chart trend

Position in the Nature chart (US), last 90 days.

#21
all-time peak
37
days in the top 50 since Mar 2026

Latest episodes

Showing 7 · updated from the feed

7. Mrs. Terwilliger

Birds in the freezer. Taxidermy in the trunk. Grownups screeching like hawks. Elizabeth Terwilliger was an unforgettable teacher who taught generations of Bay Area child

Aug 1
27 min

6. The Last Place Like This

Hidden behind Chevron's tank farm and built on the bones of condemned ships, Point San Pablo Harbor feels like a place that shouldn't exist. In this episode, we explore t

Jun 10
30 min

5. Who Will Keep This Place?

A small team takes on big polluters and wins. In this episode, the story of San Francisco Baykeeper, from its scrappy beginnings to a formidable force defending the Bay.

Apr 22
26 min

4. Geeking Out at the Bay Model

A love letter to a giant analog computer made of concrete, copper, and tidewater. Mike and Kate spend a day inside the San Francisco Bay Model, an enormous mid‑century s

Apr 4
26 min

3. Dirt, Water & Power

Who pays for the growth of a world‑class city? In this episode of Once Upon a Bay, Mike and Kate sit down with historical geographer Gray Brechin, author of Imperial San

Mar 21
20 min

2. Gold, Cuban Cigars & Mud

Marine archaeologist Jim Delgado uncovers the shipwrecks, secrets, and human stories buried under San Francisco’s streets and waves. From Gold Rush vessels entombed bene

Mar 6
31 min

1. The Baykeeper & Me

A New York newspaper story leads to marriage, a life on the water, and a mission to help the world fall in love with San Francisco Bay. In 1989, a bored venture capital

Feb 20
21 min

Chart positions

Where Once Upon A Bay ranks today in each Apple Podcasts chart (US, Sep 7, 2026).

#156 ▼ 21 Nature US

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Here you find the Apple Podcasts chart positions of Once Upon A Bay, its latest episodes to listen to directly, and reviews from listeners. Rankings are updated daily for the United States.

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