Top-down aerial shot of a small boat navigating through a vibrant algae-covered coastal water, highlighting a striking contrast between the vivid green sea and the sleek grey of the boat

boat aerial view topdown algae coastal waters green sea navigation vibrant contrast vivid colors marine life nature sea ocean water nautical vessel small boat birdseye view scenic travel exploration outdoor tranquility solitude environmental marine ecosystem aquatic coastline adventure leisure overhead natural beauty pristine untouched remote summer serene calm waters clear waters environmental impact marine vegetation sunny day clear sky nautical journey