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 activity beach churned-up colors colours conservation conserving curved curving damage damaged damaging environment environmentally-unfriendly foot-prints grainy gray grey impressed impressions imprinted imprints indented light marked marks off-road-driving over-printed patterns prints rough safety sand soft-sand surfaced tangled terrain texture textured textures tire-tracks track tracks tyre-tracks vehicle-tracks vehicles wild Africa african beautiful beauty blue brown cape cyan free green HDR hill hills horizon image landscape mountain mountains natural nature ocean orange photo photograph picture red resource rock rocks rocky scene scenery scenic sea sky somadjinn south stock stone stones table top town vibrant view water