North, South, and Nowhere Warm
InDEPTH. Article by Ricardo Castillo, with photographs credited to him, reflecting on cold-water diving and expeditions from Mexico to polar environments.
October 15, 2025Read the publication
Ricardo Castillo · Publications & media
Stories, photographs and published experience.
Selected articles, coauthored cave publications, cover photography and media coverage documenting Ricardo Castillo’s work in diving, exploration and underwater photography.
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Publications & media
Writing and conversations in InDEPTH.
Published writing and participation in conversations about exploration, diving and conservation.
Cenotes on the Edge—Preserving Mexico’s Underwater Heritage
InDEPTH. Participant in Stratis Kas’s round-table conversation with Alondra Fernández, Emőke Wagner and Pepe Urbina about the future of Mexico’s cenotes and underwater heritage.
July 2, 2025Read the publication
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Publications & media
Cave publications and cover photography.
Contributions to Underwater Speleology, the journal of the Cave Diving Section of the National Speleological Society. Coauthor and cover credits are preserved as published.
Mexico: To The Blue Abyss
Underwater Speleology · NSS-CDS. Coauthored by Luis Sánchez, Ricardo Castillo and Alfonso Caballero. A published contribution on cave diving in Mexico.
Vol. 40, No. 3 · July–September 2013Read the original issue (PDF)
Visit With A Cave: Chac Mool and Monstruo
Underwater Speleology · NSS-CDS. Coauthored by Luis Sánchez, Ricardo Castillo and Alfonso Caballero. Cover photography is credited jointly to the three contributors.
Vol. 40, No. 4 · October–December 2013Read the original issue (PDF)
Hells Bells
Underwater Speleology · NSS-CDS. Coauthored by Luis Sánchez, Ricardo Castillo and Alfonso Caballero, with Ricardo Castillo individually credited for the cover photograph.
Vol. 41, No. 2 · April–June 2014Read the original issue (PDF)
Cenote Chan Hol
Underwater Speleology · NSS-CDS. Coauthored by Luis Sánchez, Ricardo Castillo and Alfonso Caballero, with Ricardo Castillo individually credited for the Chan Hol cover photograph.
Vol. 41, No. 4 · October–December 2014Read the original issue (PDF)
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Publications & media
International photography coverage.
Selected coverage of one crocodile photography series from Cuba’s Gardens of the Queen. These are reports featuring Ricardo’s work, distinct from articles he authored.
In an unexpected encounter, photographer shoots the most beautiful crocodile photos we’ve ever seen
Earth Touch News. Sarah Keartes’s coverage of Ricardo Castillo’s crocodile photography in Cuba’s Gardens of the Queen, including images credited to Ricardo and statements about his work and conservation.
July 14, 2015Read the publication
Snorkeler comes face to face with crocodiles, snaps photos
Men’s Journal · GrindTV archive. An accessible version of GrindTV’s coverage of the same Cuban crocodile photo series. The Men’s Journal page credits Ricardo’s photographs and includes statements provided to GrindTV; its displayed date is December 5, 2019.
Accessible edition dated December 5, 2019Read the publication