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Meet a marine biologist who explores our Sonoran Desert's ocean

hamilton sea of cortez hero
Courtesy: Paul Hamilton, PhD
Paul Hamilton, PhD, says this is one of his favorite anchorages. It is called Candeleros Chico, and it is south of Loreto, Baja Carlifornia Sur in Mexico. "The shallow rocks in the foreground have freaking amazing snorkeling," Hamilton adds.
Meet a marine biologist who explores our Sonoran Desert's ocean

Featured on the July 2nd, 2026 edition of ARIZONA SPOTLIGHT with host Mark McLemore:

  • Visit the Sea of Cortez to meet a biologist and solar sailor who strives to save and photograph local ecosystems.

Tucson resident Paul S. Hamilton, PhD is a field biologist and conservation photographer who has been working on different continents for more than three decades.While his terra firma house is in Tucson, Hamilton also has a seafaring home called Triplefin, a boat that was built in 1987 and renovated to run on solar power.

_Hamilton has lived on Triplefin for years, and uses it to take scientists, photographers, journalists, and other groups to scenic settings in the Sea of Cortez. He's also involved in another group that aims to protect species and ecosystems, while trying to improve the lives of residents in those areas. The Sea of Cortez, also known as the Gulf of California, is home to Arizona's closest maritime beaches such as Puerto Peñasco and Bahía Kino._


  • And closer to home, AZPM's Laura Holánszky reports on how the [Reid Park Zoo](https://reidparkzoo.org/} is undertaking a campaign to conserve 1 million gallons of water

Arizona Spotlight
Arizona Spotlight airs every Thursday at 8:30 am and 6:00 pm and every Friday at 8:00 pm on NPR 89.1 FM / 1550 AM. You can subscribe to our podcast on Apple Music, Spotify, Amazon Music, or the NPR App. See more from Arizona Spotlight.

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Mark McLemore is the host of Arizona Spotlight on NPR 89.1, a weekly radio show with a very wide beat.