15) Katara – 408ft (124.4m)

This 408 feet superyacht is rumored to feature a Beach Club with sea terraces, helipad and cinema. Not much is known about this massive vessel.

14) Octopus – 414ft (126.2m)

Motor superyacht Octopus is regularly seen at the International Yacht club Marina in Antibes. It was custom built in 2003. This 414 feet superyacht’s interior has been designed by Jonathan Quinn Barnett. It can accommodate more than 50 guests. It was last refitted in 2008.

13) Al Mirqab – 436ft (133m)

Built in 2008 by Peters Schiffbau in Wewelsfleth, this 436 feet superyacht is owned by the Emir of Qatar. Its sleek exterior was designed by Tim Heywood. Interior designing was done by Andrew Winch Designs.

12) Serene – 439ft (133.9m)

Serene is a 439 feet motor superyacht. It was built in 2011 by Fincantieri and can carry up to 52 people. It costs around €1.6 million per week to charter.

11) Rising Sun – 454ft (138.4m)

Custom built 454 feet superyacht Rising Sun’s interiors were designed by Seccombe Design. It was built in 2004 by Lurssen Yachts. It was last refitted in 2007.