Russian multi-billionaire Roman Abramovich's Pelorus yacht is moored beside English Embankment in St.Petersburg. The 377ft yacht has 2 helicopter pads and is rumoured to house 'toys' such as wave runners and jet skis.
Picture by: Ruslan Shamukov, Copyright: Photas/Tass/PA Photos
New York real-estate mogul Jonathan Leitersdorf - lends his boat to celebrities such as Jack Nicholson and P Diddy
STEPHAN AGOSTINI/AFP/Getty Images, (Inset):PA Photos
Oracle CEO, Larry Ellison, is the owner of one of the world's largest personal yachts.
Photo by David Paul Morris/Getty Images
Ellison's 'Rising Sun' is over 452ft long and has a swimming pool, wine cellar, basketball court, cinema and suites for 16 of his closest friends.
Photo by Jesse Grant/WireImage
Donald Trump bought the $100 million "Trump Princess" for the bargain-basement price of $29 million in 1988 when its former owner ran into financial difficulties. He then sold it to a Saudi prince for $40 million 3 years later
Photo by Ron Galella, Ltd./WireImage
The Mirabella V. The $50 million yacht - owned by US businessman Joe Vittoria - is 75 metres long and has a mast some 90 metres high.
Picture by: Chris Ison, Copyright: PA Archive/PA Photos
American millionaire Joe Vittoria - founder / owner of Avis car hire group aboard their yacht. The boat is available for private hire starting at $375,000 per week during high season
Picture by: Chris Ison, Copyright: PA Archive/PA Photos
Philip Green aboard his yacht Lionheart in Mallorca.
Picture by: cruisepictures, Copyright: EMPICS Entertainment/PA Photos
Sir Anthony Bamford, owner of JCB construction and a £30million pound yacht
Picture by: Peter Jordan, Copyright: PA Archive/PA Photos