ac/dc clean power climate climate change Denmark ecogoly ecological awarness electricity elements energy global warming gras green energy green power off shore off shore park panorama power plant renewable renewable energy resource resources shore sources street sustainable technology turbine wind wind energy wind mill wind turbine windmill windpower bay boat cruise Halong junk scene Vietnam activities buying Halong Bay making money tourist vietnamese lady close up design dragon element front of boat air gigawatt horizon kilowatt kilowatthour megawatt off-shore sea sky turbines water waves wind farm wind power animal animals bank coast cut off dog dogs lake longing lookout missing pet pets sand sawn strand stub Stump tree trunk wait waiting watch water's edge waterside aged beam bridge bulk endless endlessly grid handrail infinite iron metall metallic bridge no end old old gateway path perspective rust rusty steel unlimited way way to nowhere weathered autumn beach cloud clouds coastline cost HDR nyberg. tree rock rocks seaweed stone stones trees wave winter Boats and boating--Equipment and supplies dinghy Fluvial landforms of streams maritim rubber dinghy sports vehicle watercraft Wind wave background blue color colour dingey frost jolly-boat off-season orange red sailing snow streaks sunny texture turquoise upside-down