sand dune hills filled with grasses, shrubs, birch trees and evergreen trees, on a summer day, in kohler andrae state park

kohler dunes state natural area cordwalk sheboygan wisconsin usa america kohlerandrae park trees plants travel hiking exploring adventure scenic nature outdoors summer tourism vacation environment beauty solitude peaceful sight therapy conservation tranquil shrubs grasses sand landscape lake michigan water horizontal cumulus clouds hills hilly birch evergreen betula betulaceae conifers deciduous dune filled day andrae