Jump off the trail and comb the beaches of Anchorage. At low tide you can touch the dense glacial silt of the mudflats (but do not walk on them). Unlike sandy beaches of the south, pebbles and gravel left by glaciers coat the shoreline. The luxurious spa quality of glacial mud is well known by Alaskans who grow up bathing in its buttery texture. This silt has been packaged and sold as a beauty product around the world.