34 of the best celebrity yacht moments of 2015

Former-Spice Girl Geri Halliwell was spotted enjoying a luxury yacht vacation in St Tropez in August. The singer stayed on board the 25 metre semi-custom yacht Blue Quest II and was joined by her daughter, Bluebell Madonna, and new husband, F1 boss Christian Horner. The yacht comes equipped with some of the  best water toys for children while Halliwell and Horner got in on the fun by leaping from the yacht into the ocean below.

Socialite and fashion designer Chloe Green shared a series of snaps on Instagram in August allowing her fans to see inside her  luxury yacht vacation in Turkey. Green was staying on board superyacht Lionheart with friend and model Maryna Linchuk. The 63 metre  Benetti is owned by Green's parents - Topshop boss Sir Philip Green and interior designer and Boat International contributor Tina Green.

Reality TV stars Khloe Kardashian and Kendall Jenner - a  model fond of superyacht vacations - shared this snap while taking a  luxury yacht cruise in St Barts in August. The half-sisters are holidaying on the  Caribbean island with their large family and have been demonstrating their thrill seeking sides by riding jet-skis and giving flyboarding a try.

Elle Macpherson enjoyed not one but two luxury yacht vacations in 2015. The model was first spotted on a superyacht in Monaco on board the 55.5 metre Feadship Madsummer with her husband Jeff Soffer in July before posting a snap of her family enjoying a Thanksgiving get together on board a luxury yacht in November.