📸 SpeleoFotoContest 2025 – Registrations Open!

Showcase your best cave photography! 🦇📷

✨ "Aragonite, detail" – 📍 Daniele Sighel, SFC 2006

🔗 Sign up & download the rules: https://www.speleofotocontest.com/en/sentry-award/registrations/

Available in English, Italian, & soon Spanish!

#SpeleoFotoContest #SFC2025 #CavePhotography #UndergroundWorld #Speleology #Aragonite #Karst #SentryAward

The Postojna cave. Europe’s largest with beautiful formations all kinds of colors.. These caves are millions of years old. It takes 100 years to build 3 cm of a stalactite. #cave #europetravel #cavephotography📸 #stalactite

Posted into The Travel Exchange @the-travel-exchange-travelers

Cave pearls showing off their phosphorescence. This isn't a glow in a UV light but instead the slower release of energy after excitation.

#cave #cavephotography #photography #physics #geology #glow #rocks