1. Papakolea Beach - Hawaii
Also known as Green Sand Beach. Located on the southern tip of the big island. It's only accessible by foot or four wheeler. Papakolea Beach's sand is made of tiny olivine crystals from the near-by lava rocks.
2. Kokkini Beach - Santorini, Greece
Also known as Red Beach. The sand is red because of red lava rocks left over from an ancient volcanic eruption in 1450 B.C.
3. Pink Sand Beach - Harbor Island, Bahamas
4. Pfeiffer Beach - Big Sur, California
Patches of dark purple can be found at this beach because of large deposits of quartz and manganese garnet.
5. Shelter Cove - Humboldt County, California
The gray sand is a result of years of erosion of the adjacent gray shale cliffs. You can spot some sea lions, white sharks and even bald eagles here.
6. Rainbow Beach - Australia
The beach is less than a mile long but is absolutely spectacular. It is reported that there are over 74 different hues of sand here.