And more often than not, these tunnels lead not only to diamonds, but to huge caverns filled with sparkling rubies, emeralds, and veins of gold. (redeeminggod.com)
Then drive six kilometres (3.7 miles) north to explore Ngilgi's huge cavern of illuminated stalactites and stalagmites. (australia.com)
You can see them in huge caverns — including one the size of three football fields — on the easily accessible Dripstone tour that even my claustrophobic 87 - year - old grandmother enjoyed. (discovermagazine.com)