Sunset at Halong Bay, North Vietnam. The bay features 3,000 limestone and dolomite karsts and islets in various shapes and sizes sprinkled over 1,500

- Image ID: KW6DRJ
Sunset at Halong Bay, North Vietnam. The bay features 3,000 limestone and dolomite karsts and islets in various shapes and sizes sprinkled over 1,500
Blaine Harrington III / Alamy Stock Photo
Image ID: KW6DRJ
Sunset at Halong Bay, North Vietnam. The bay features 3,000 limestone and dolomite karsts and islets in various shapes and sizes sprinkled over 1,500 square kilometers. It offers a wonderland of karst topography. It is a UNESCO World Heritage Site.