This is the famous Horizontal Falls in the Kimberley region of western Australia. Although called waterfalls, this natural phenomenon actually consists of immense tidal currents hurtling through narrow coastal gorges. When the tide turns, the water ‘falls’ back in the…

Believe it or not, here’s something else to see in Antarctica! They are snow and ice dunes known as ‘sastrugi’, and are formed on a snow surface by wind erosion and deposition. They differ from sand dunes in that the…

This is the Salton Sea an inland ‘man-made’ salt-lake, located in Southern California. It usually covers a surface area of 974 square kilometres (although it varies a lot), making it the largest lake in California. It was formed in 1905…

Here is a great shot of Miyakejima Satsuma-Iwojima Island off the coast of Japan. It is volcanic in origin and the big volcano is Mount Oyama. This has erupted several times in recent history. A lava flow in 1940 killed…

At 83 metres high, the Montmorency Falls in Quebec are 30 metres higher than Niagara Falls. Apparently there are staircases that allow visitors to observe the falls from different vantage points… Not our vantage point though! The falls look absolutely…

To celebrate the first Moon landing today (July 20th, 1969) Google have added some NASA moon imagery to the Google Maps interface and created Google Moon. Make sure you zoom right in for a hint at what the moon is…