Siesta key Beach, Florida Siesta Beach is a beach located on Siesta Key in the U.S. state of Florida. Unlike beaches elsewhere that are made up mostly of pulverized coral, Siesta Beach’s sand is 99% quartz, most of which comes from the Appalachian Mountains. [Wikipedia] Siesta key Beach – Sarasota Florida (Video: Florida 4K) Menu Kyoto, Japan Mount Fuji Siesta key Beach, Florida Swiss Alps Talkeetna, Alaska The New River Gorge National Park – West Virginia