Red sand on Kaihalulu Beach, Hawaii — located in a volcanic cinder cone. The erosion of the volcanic cinders gives its sand a vibrant red hue.
Bioluminescence in the Maldives IslandsBioluminescence is the production and emission of light by a living organism. It is commonly produced in some of the beaches in the Maldives Islands by phytoplankton known as dinoflagellates.
Dinoflagellates are tiny organisms that glow similarly to fireflies. They emit a green-blue light when stressed, or as a defense mechanism against predators.
The Crystal Maw - Lake Superior, Wisconsin (by Alex Noriega).
The Land of Lava and Ice - Iceland (by Kimmo Savolainen).
Dioptase by Archangem.
Kauai - Hawaii (by Adam Foster).
Hochtor Pass - Grossglockner High Alpine Road, Austria (by Jakub Polomski).
Passing Glance (by Daniel Parent).