chalk cliff coastal coastline Devon England english erosion February footpath Great Britain landscape rock sea shore stack terrain track trail view water ACV aerodynamic aerodynamics air air-cushion air-cushion-vehicle air-pressure amphibious craft cushion drive engines fans flexible flexible-skirt flight friction high-air-pressure hovercraft hull hybrid-vessel impeller inflated inflated-skirt low-frictional-force MTV multi-terrain-vehicle multiple-terrain on-board pilot propel propellers rise sightseeing skirt skirted specialised-transport speed stationary surface surfaces thrust tourism tourists transport transporting travel travelling vehicle 4wd 4x4 all atv auto car cytout engine foul four-wheel huge isolated machine off-road offroad transportation wheel blue brown distance empty fertile geology grass green hills lakes mountains nature perspective plains render rugged snow valleys wild back roads boonies country environment land non-urban area panorama photograph prospect scene scenery setting sketch sticks surroundings vista document documentary group guide hike Himalayas Incredible India India Jammu jeep Ladakh road rough tour tourist traveling beacons cutout driver grill lamps lights powerful railings wagen wheels Airey's Inlet Australia beach Great Ocean Road horizon Natural landscape ocean sky tide water resources wave