From the desert to the sea
Pick up a rock on the beach in Dahab and you're holding something 600 million years old — formed before Africa and Arabia even existed as separate continents. Joseph and Annet pick up a piece of red granite and a smooth black basalt on the beach and unpack what makes them different, why one lets water through and the other doesn't, and how that knowledge was used to find wells in the desert. You'll also learn why the Red Sea might have gotten its name — and it's not what most people think. Chapters: 00:00 — Episode intro & disclaimer 00:55 — Welcome to Dahab 01:09 — The rock in Joseph's hand 01:19 — Red granite: hundreds of millions of years old 02:17 — How the rock got smooth: wadis and floods 03:15 — What's inside granite (minerals) 04:03 — The tiny white circles — a marine animal 05:08 — The second rock: black basalt 06:34 — Spotting basalt lines in the mountains from above 06:58 — Finding water using these two rocks 08:01 — Why granite filters water and basalt doesn't 09:35 — Why is it called the Red Sea? 09:52 — The algae explanation 10:19 — Wrap up Watch the video version on YouTube — you'll find us at @dahablive9360 Want to say hello? Find us at desertandriver.com or message us WhatsApp: +201063864837 Planning a journey to Sinai? Book a call: calendly.com/desertandriver2026/30min The views and information shared on Desert and River are for entertainment and informational purposes only. While we do our best to get it right, some details may be imperfect — we're storytellers, not academics! If you spot anything, drop a comment on the YouTube video. For full terms, disclaimers and copyright information please visit desertandriver.com
