People walking on the ocean floor at Hopewell Rocks in New Brunswick. Bay of Fundy, Nova Scotia, Canada. Tide changes every 6 hours. High and low tide vary by 50 feet, the greatest height in the world. Photo: New Brunswick Tourism and Parks
The Pearl Waterfall, China. Pearl Shoal Waterfall is a waterfall located in Aba-Ngawa Tibetan and Qiang Autonomous Prefecture in northern Sichuan Province (China). The waterfall exists on one of the tributaries of the Bailong Jiang (White Dragon River).