Another of those great images of sea phenomena that I like, cross (or grid) waves, which occur when two sets of waves travelling from different directions cross at an angle of 45° or more. This creates very steep short-crested waves that can be dangerous for shipping. From the European Space Agency.
This beach looks more like a beach than the Chinese Red Beach. However, this is no ordinary place for leisure. Glass Beach, located near Fort Bragg, California is abundant in sea glass created from years of dumping garbage into an area of coastline near the northern part of the town. It is now one of the popular tourist attractions, although collecting sea glass is not permitted. This might not count as a natural wonder, but nature really did its trick here.