Descending the Mahra "Well of Hell"

The famous and mysterious massive hold in the ground in Mahra has been explored by a team from Oman. For details and pictures check out these sites:
https://www.bbc.com/news/av/world-middle-east-58653795

The famous and mysterious massive hold in the ground in Mahra has been explored by a team from Oman. For details and pictures check out these sites:
https://www.bbc.com/news/av/world-middle-east-58653795