Toronto Canada: View of the Toronto skyline with skyscrapers and the CN Tower prominent. A sail boat passes by on Lake Ontario in the foreground.

The Hayman Islands, Australia: Man wearing lifejacket sailing in small yacht along shoreline on turquoise sea, boat is slowly bobbing along water past green vegetation on island

Cairo, Egypt: Three boats of different colours sail closely together along the river Nile.

The Hayman Islands, Australia: Two sailing yachts in form of catamarans approaching shore of sandy beach, the holidaymakers inside them are wearing lifejackets

Cairo, Egypt: A boat with a bright blue sail travels along the river Nile.

The Hayman Islands, Australia: Water lapping onto sandy beach with sailing boats in distance

Yachts and sail boats docked at a marina in Miami, Florida USA. A small yacht slowly leaves the marina.

Wide shot of a yacht with open sails gliding across a blue sea, a cloudless blue sky in background.

Santa Barbara, USA: Two sailing boats sailing near to shore. A small boat speeds past them.

The Hayman Islands, Australia: Two people wearing lifejackets sitting in sailing yacht on turquoise blue sea slowly approaching shore

St. Lucia, the Caribbean: Catamaran boat sailing along blue sea from behind rock

Cairo, Egypt: Three boats of different colours sail along the river Nile.

Nevis, the Caribbean: Yellow sunlight reflected on sea then image goes out of focus to show silhouette of sailing boat along horizon

Sailing boats docked at a marina in Miami, Florida USA. Boat masts reflections seen on the water.

The Hayman Islands, Australia: Close back view of two people sitting in sailing yacht wearing lifejackets on turquoise sea approaching shore

A small sail boat passes across Lake Windermere in Cumbria, England. The foothills of the Lake District are visible in the misty background.

Turkey: A boat travels smoothly across the Bosphorus River. The light is reflected on the water's surface.

A captain walks along the deck of his ship.

Yachts in dock on Lake Windermere in Cumbria, England. The foothills of the Lake District are visible in the background

Greenwich, London: Figurehead and chains at front of Cutty Sark tea clipper ship silhouetted against sun (before recent fire damage) then image dissolves to long general view of ship in silhouette including the three masts with rigging attached

A pleasure boat carrying sightseers passes across Lake Windermere in Cumbria, England. The foothills of the Lake District are visible in the misty background.

Turkey: A boat bobs gently on the Bosphorus River.

Large luxury yacht docked at a marina in Miami, Florida USA. The white yacht stands out from blue water and sky with its reflection seen in the water.

Turkey: A boat bobs gently on the Bosphorus River. The light is reflected on the water's surface.

Cambodia: Two long Dragon boats race along a river.

Wide view of Lake Windermere in Cumbria, England. Sailboats pass across the lake and the foothills of the Lake District are visible in the misty background.