The map of the Wabar craters, known as Al Hadida or “the place of iron” to local Bedouin. All photos: Ana-Maria Pavalache / Heart of Arabia expedition
Volcanic rock at the Al Wabar craters. Philby visited the craters on a separate trip across the Empty Quarter in 1932 in search of the lost desert city of Ubar
The vast deserts of Saudi Arabia captured by drone
A drone captures the team travelling in the Empty Quarter desert from above