Walking Georgia Beaches
Friday, July 24th, 2009 
Georgia beaches are constantly moving and changing shape. Summer beaches and winter beaches have different characteristics. The majority of beach residents are found either in burrows or interspersed among the wet sand grains. Take this do-it-yourself tour to learn more about how Georgia beaches work.
Layering and ripples are the two most common beach structures that the beach walker will observe. Ripples are formed in the near-shore area by both waves and currents. They mark the path of water from the beach back into the ocean. The size of ripples varies widely, but their crests are usually parallel to the beach slope. Layering is the wavy patterns of lighter and darker sand or sand of different textures. It looks something like chocolate swirl ice cream. It’s caused by concentration of heavy minerals or by variations in the size of sand grains. Geologists identify layering and ripples in ancient sandstones to develop new clues to the history of the earth.The beach never looks the same way twice. The turbulence in the breaker zone and the swash of the waves on the beach constantly rearrange sand particles and reshape the shore line. Materials stirred up by waves are deposited as offshore bars just inland from the zone of greatest breakers. Sand grains are repeatedly carried onto the beach by the swash and carried back out again with the backwash. Those factors, combined with the seasonally changing direction of the wind, produces one of the earth’s most dynamic environments. (more…)
Visitors may tour this Georgia barrier island with the National Estuarine Research Reserve, with island native Maurice Bailey or on their own from the seat of a rental bike from Comyam’s Campground.
Wilderness Southeast Tours include Wassaw Island on the Georgia coast where each spring endangered loggerhead turtles crawl up on the beach to lay their eggs.
Bull River Cruises conducts dolphin tours and includes information about tides, marshes and the history of the region as a part of the tour package.