The Horizontal Falls, near Talbot Bay, in the north-west of Western Australia are described by David Attenborough as "one of the greatest natural wonders of the world". Although they are called waterfalls, this natural phenomenon actually consists of immense tidal currents hurtling through narrow coastal gorges. And they do all this sideways - hence the name, Horizontal Falls.
It is created by the enormous variation in tides - which are as much as 10 metres driven by the massive Montgomery Reef located 30 miles out to sea from the bay. The water level rising, or falling, in Talbot Bay (due to the tide) causes a major height difference with the water level in the inlet on the other side of the Falls. The velocity and mass of water involved in this twice daily event make it one of the largest tidal changes in the world.
Talbot Bay is almost Australia's last frontier, few people have ever seen this spectacular event. There is no car access.