high angle horizontal view of thunder hole with waves battering the cliffs seen during an early sunny morning

rock water nature geology terrain sea coast cliff wave waterfall shore formation ocean reflection high angle horizontal view thunder hole waves battering cliffs early sunny morning acadia national park mount desert island maine usa water wave wet crashing splash spray cliffs rocky acadia park attraction battering sunny beautiful blue cliff coast coastline destination east side flowing foam angle inlet island landmark landscape maine morning natural nature ocean outdoor loop road rocks scenic sea shoreline sky summer tourism tourist travel usa