For this to occur, waves must have limited energy, so beaches often form in sheltered areas like, Sandy beaches are usually found in bays where the water is shallow and the waves have less energy. Other times they are constructed to shelter boats in calm water. is an extended stretch of sand or shingle jutting out into the sea from the land. Use neat arrows or a key system. Spits occur when there is a change in the shape of the landscape or there is a river mouth. Read about our approach to external linking. Our national parks contain diverse coastal environments: high-energy rocky shorelines of Acadia National Park in Maine, quiet lagoons within War in the Pacific National Historical Park in Guam, and the white sandy beaches of Gulf Islands National Seashore in Mississippi and Florida. This landform is known as a. . Shoreline structures are built to alter the effects of ocean waves, currents and sand movement. The build-up of deposited sediment can form different features along the coast. Bondi Beach, Sydney, Australia. As glaciers melted, the land recovers from the weight of the ice. occurs. Frame and title your diagram. Spits occur when there is a change in the shape of the landscape or there is a river mouth. This is partially because the moving water constantly breaks down the particles located here. , and where there are higher energy waves. They can trap shallow lakes behind the bar, these are known as lagoons. The beach profile has lots of ridges called berms. Title, Inventory & Monitoring Networks and Parks, Amistad National Recreation Area, Texas—[, Aniakchak National Monument and Preserve, Alaska—[, Assateague Island National Seashore, Maryland, Virginia—[, Bering Land Bridge National Preserve, Alaska—[, Boston National Historic Park, Massachusetts—[Geodiversity Atlas] [, Boston Harbor Islands National Recreation Area, Massachusetts—[, Buck Island Reef National Monument, Virgin Islands—[, Cape Cod National Seashore, Massachusetts—[, Cape Hatteras National Seashore, North Carolina—[, Cape Krusenstern National Monument, Alaska—[, Cape Lookout National Seashore, North Carolina—[, Castillo de San Marcos National Monument, Florida—[, Castle Clinton National Memorial, New York—[Geodiversity Atlas] [, Channel Islands National Park, California—[, Colonial National Historic Park, Virginia—[, Cumberland Island National Seashore, Georgia—[, De Soto National Memorial, Florida—[Geodiversity Atlas] [, Fire Island National Seashore, New York—[, Fort Caroline National Memorial, Florida—[, Fort Frederica National Monument, Georgia—[, Fort Matanzas National Monument, Flordia—[, Fort McHenry National Monument and Historic Shrine, Maryland—[Geodiversity Atlas] [, Fort Moultrie National Monument, South Carolina—[Geodiversity Atlas] [, Fort Point National Historic Site, California—[, Fort Pulaski National Monument, Georgia—[, Fort Raleigh National Historic Site, North Carolina—[, Fort Sumter National Monument, South Carolina—[, Gateway National Recreation Area, New Jersey and New York—[, Glacier Bay National Park and Preserve, Alaska—[, Golden Gate National Recreation Area, California—[, Governors Island National Monument, New York—[Geodiversity Atlas] [, Gulf Islands National Seashore, Mississippi and Florida—[, Jean Lafitte National Historical Park and Preserve, Louisiana—[, Kalaupapa National Historical Park, Hawaii—[, Kaloko Honokohau National Historical Park, Hawaii—[, Katmai National Park and Preserve, Alaska—[, Klondike Gold Rush National Historical Park, Alaska—[, Lake Clark National Park and Preserve, Alaska—[, Lewis and Clark National Park, Oregon and Washington—[, National Park of the American Samoa, American Samoa—[, New Bedford Whaling National Historic Park, Massachusetts—[Geodiversity Atlas] [, Point Reyes National Seashore, California—[, Pu'uhonua O Honaunau National Historical Park, Hawaii—[, Pu'ukohola Heiau National Historic Site, Hawaii—[, Roosevelt Campobello International Park, Maine—[Geodiversity Atlas] [, Sagamore Hill National Historic Site, New York—[, Saint-Gaudens National Historic Site, New Hampshire—[, Saint Croix International Historic Site, Maine—[Geodiversity Atlas] [, Salem Maritime National Historic Site, Massachusetts—[Geodiversity Atlas] [, Salt River Bay National Historic Park and Ecological Preserve, Virgin Islands—[, San Juan National Historic Site, Puerto Rico—[Geodiversity Atlas] [, Santa Monica Mountains National Recreation Area, California—[, Statue of Liberty National Memorial, New York—[Geodiversity Atlas] [, Timucuan Ecological and Historic Preserve, Florida—[, Virgin Islands National Park, Virgin Islands—[, Virgin Islands Coral Reef National Monument, Virgin Islands—[Geodiversity Atlas] [, War in the Pacific National Historical Park, Guam—[, World War II Valor in the Pacific National Monument, Hawaii—[Geodiversity Atlas] [, Wrangell-St. Elias National Park and Preserve, Alaska—[, Wright Brothers National Memorial, North Carolina—[, Ebey's Landing National Historical Reserve, Washington—[, George Washington Birthplace National Monument, Virginia—[, Port Chicago Naval Magazine National Memorial, California—[Geodiversity Atlas] [, San Francisco Maritime National Historical Park, California—[Geodiversity Atlas] [, San Juan Island National Historical Park, Washington—[, Thomas Stone National Historic Site, Maryland—[, Apostle Islands National Lakeshore, Wisconsin—[, Indiana Dunes National Lakeshore, Indiana—[, Perry's Victory and International Peace Memorial National Memorial, Ohio—[Geodiversity Atlas] [, Pictured Rocks National Lakeshore, Michigan—[, Sleeping Bear Dunes National Lakeshore, Michigan—[, Whiskeytown National Recreation Area, California—[, Yellowstone National Park, Idaho, Wyoming, and Montana—[, Bighorn Canyon National Recreation Area, Montana and Wyoming—[, Chickasaw National Recreation Area, Oklahoma—[, Curecanti National Recreation Area, Colorado—[, Glen Canyon National Recreation Area, Utah—[, Lake Chelan National Recreation Area, Washington—[Geodiversity Atlas] [, Lake Mead National Recreation Area, Nevada—[, Lake Meredith National Recreation Area, Texas—[, Lake Roosevelt National Recreation Area, Washington—[, Ross Lake National Recreation Area, Washington—[Geodiversity Atlas] [.