Limestone desert landscape, Paraje Natural de Karst en Yesos de Sorbas, Almeria, Andalusia, Spain, Europe

Rugged and remote, limestone islands rise around a beautiful lagoon seascape in Raja Ampat, Indonesia. This region is known as the heart of the Coral Triangle due to its incredible marine biodiversity. It is a popular destination for scuba divers and snor

Morning light shines on a beautiful limestone island in Raja Ampat, Indonesia. This region is known as the heart of the Coral Triangle due to its incredible marine biodiversity. It is a popular destination for scuba divers and snorkelers.

Aerial view of beautiful limestone islands scattered about the seascape in Raja Ampat, Indonesia. This tropical area is known for its extraordinary marine biodiversity and is a popular destination for divers and snorkelers.

The Burren famous glaciated karst pavement landscape of limestone and dry stone walls, County Clare, West of Ireland

Limestone pavement glaciated karst landscape and native flora in The Burren, County Clare, West of Ireland

Limestone pavement glaciated karst landscape in The Burren, County Clare, West of Ireland

Wild native flower flora and limestone pavement glaciated karst landscape in The Burren, County Clare, West of Ireland

Limestone pavement glaciated karst landscape in The Burren, County Clare, West of Ireland

El Tornillo rock formation. El Torcal de Antequera, Sierra del Torcal, Antequera, M�laga, Andalusia, Spain. Karstic rock formations

Silhouetted karst rock formations at sunset in Phang-Nga, Thailand, Ao Phang Nga, Phang-nga, Thailand

Silhouetted karst rock formations at sunset in Phang-Nga, Thailand, Ao Phang Nga, Phang-nga, Thailand

Landscape of tropical karstic phenomena in the Tsingy national park of Bemaraha, Small Tsingy area, UNESCO World Heritage site, Early November: end of dry season, Madagascar

Landscape of tropical karstic phenomena in the Tsingy national park of Bemaraha, Small Tsingy area, UNESCO World Heritage site, Early November: end of dry season, Madagascar

Landscape of tropical karstic phenomena in the Tsingy national park of Bemaraha, Small Tsingy area, UNESCO World Heritage site, Early November: end of dry season, Madagascar

Landscape of tropical karstic phenomena in the Tsingy national park of Bemaraha, Small Tsingy area, UNESCO World Heritage site, Early November: end of dry season, Madagascar

Tek (Trimix) speleologist diver in a karstic underwater cave over 70 meters deep, Photogrammetry, twiglight zone, Mayotte

Landscape of tropical karstic phenomena in the Tsingy national park of Bemaraha, Small Tsingy area, UNESCO World Heritage site, Early November: end of dry season, Madagascar

Mid-air-mid-water view of the Burles spring, karstic exsurgence of Vauclusian type, on the commune of sainte-Enimie, Lozere, Occitania, France.

Landscape of tropical karstic phenomena in the Tsingy national park of Bemaraha, Small Tsingy area, UNESCO World Heritage site, Early November: end of dry season, Madagascar