Tying the knot: romantic weddings, receptions and honeymoons at sea

It seems only fitting that the Former First Lady of the United States and Greek shipping magnate Aristotle Onassis would celebrate their nuptials on board Christina O in 1968– after all, it belonged to Onassis. Once a vessel built for the Canadian Navy, the yacht was sold off at the end of WWII and bought in 1954 by the visionary. The 99-metre yacht is named after Onassis's daughter, Christina, while the O references his wife's new nickname, Jackie O. The luxury yacht was frequented by the likes of Marilyn Monroe, John Wayne, Elizabeth Taylor, Grace Kelley, and Frank Sinatra in her heyday, and continues as a popular charter yacht today. Interestingly, the yacht's bar (known as Ari's Bar) served as the first meeting place for John F. Kennedy and Winston Churchill.

Heidi Klum and Tom Kaulitz join the roster of celebrities who've enjoyed celebrations on the legendary Christina O. The German supermodel took to Instagram to post an image of the duo sharing a kiss on the superyacht, captioning it, "We did it. Mr.&Mrs. Kaulitz". Stood beneath a canopy of white and pink flowers, Klum was dressed in a billowing embroidered gown to match Kaulitz in his sharp white suit. The posts continued throughout the week, showing the newlyweds at the famous lemon restaurant in Capri (Restaurant da Paolino Capri) and, later, a video of them taking limoncello shots.

In 1956, Grace Kelly and Prince Rainier celebrated their wedding on board Deo Juvante II -  the couple famously sailed into Monaco harbour, where the entire principality greeted them. The newlyweds then celebrated their honeymoon by cruising the coast of Corsica and Sardinia. The yacht was formerly owned by Aristotle Onassis, who bought her as HMS Noir, renamed her Arion and added her to his charter fleet (alongside the infamous Christina O). A couple of years later, Onassis gifted the yacht to Prince Rainier and Princess Grace as a wedding gift. In 2011, the yacht was once again renamed Grace in a nod to her Hollywood associations.

In October 2013, singer Pharrell Williams wed his bride, model Helen Lasichanh, before boarding the 37-metre Oceanfast yacht Never Say Never for their wedding reception. The couple have chosen to keep their relationship mostly out of the public eye, so the charter yacht was the perfect private space to celebrate with other big names in the industry, including Usher, Busta Rhymes, Robin Thicke and Justin Timberlake, who were all rumoured to be there. The yacht's exterior is designed by Jon Bannenberg Ltd., while the interior is the work of Eric Johnson and Jon Bannenberg Ltd.

Kourtney Kardashian and Travis Barker gave the public a lesson in la dolce vita, spending time on board the 65-metre Codecasa yacht Regina d'Italia in the days around their wedding. Translating as "Queen of Italy", the superyacht is reportedly owned by the Italian design duo Domenico Dolce and Stefano Gabbana, the powerhouse responsible for designing the Kardashian's wedding dress. While the ceremony was held onshore, the yacht was anchored off the Italian seaside town of Portofino. The A-lister and Blink-182 drummer were spotted jumping from the 33.5-metre silver and white Riva 110 Dolce Vita just an hour before their wedding, supposedly to calm their nerves.

Singer Neil Young and his girlfriend, American actress Daryl Hannah, made it official onboard during a small ceremony in August 2018. Young reportedly owns the 31-metre schooner W.N. Ragland, which is where the husband-and-wife's intimate ceremony took place against a backdrop of the beautiful San Juan Islands.

British actor Ed Westwick and now-wife Amy Jackson join the long list of celebrities who have celebrated their wedding on board. The newlyweds made it official during an intimate ceremony in London before flying out to Italy to kickstart their three-day wedding celebrations, which were hosted at the 16th-century Castello di Rocca Cilento. Although not technically a yacht, a 57.2-metre charter vessel named Patrizia hosted the couple's welcome party, where they sailed along the Amalfi Coast with friends and family aboard. Jackson took to Instagram to reveal more details of the welcome party, stating: "It was the perfect start to our Love Story Weekend as the sun set behind the Faraglioni Rocks."