Manhattan Beach Pier

Sand is an essential component of modern life (it's in concrete, asphalt, glass and silicon chips) and yet despite its abundance, we're running out of it. Fifty billion tons of sand is used each year for construction, straining worldwide supplies for this non-renewable resource (in human timescales). Well here on a summer day in Southern California, we simply call it the beach! But when did you last build a sand castle at the beach? Grab your shovels and buckets and exercise your design and construction muscles this Sunday where…