World's top five lighthouse hotels

• Superyacht doubles as a science lab
• $16 milion solar yacht sails into the record books

• Follow Shirley on Twitter
• Stay up to date with the latest from ISAF website

• Shipwreck's ghostly underwater art gallery
• Life of a daredevil photographer

• $6m man-made island
• Pensioner to sail world in 'bathtub' boat

Every month "MainSail" explores one of the world's most tough, exhilarating and glamorous sports. We bring viewers the latest on sailing events, upscale travel, technology and business.

On "MainSail" in May, Shirley Robertson has exclusive access with an all female round the world racing unit as they prepare to take on the world and beat some of the best male crews on the planet.
Watch Mainsail at the following times (GMT):
Thursday May 9: 0930, 1630
Saturday May 11: 0730

Read more about CNN's special reports policy.

• Computer hackers conquer high seas
• Lonely sailors search for love online

• The boat that Hendrix's guitar built
• Cutty Sark rises from ashes

• Why tall ships still capture the imagination
• Sailing's golden era

• Bubbles and boar: A very British race
• Boats just keep getting bigger

• Best tropical island sailing spots
• Inside the mind of a yachting cartoonist
• Sailing the world's most beautiful lakes
• Naked rowers break record books
• 'World's unluckiest boat' bows out
• Reliving Antarctic's 'greatest survival story'
• Seven distant and dangerous retreats
• 7 romantic riverside retreats
• Rising tide: China's superyachts
• Incredible racing images from the sea
• Drama grips 'world's toughest race'
• Luxury gadgets making a splash
• Kiteboarding: Meet the future champs
• MainSail archive

• Scouring the sea for sunken treasures
• Swedish shipwreck hunters' mysterious find