In September 2019, in Brodie’s Bar aboard Ventura, Mitchell Still’s friends dared him to introduce himself to a stranger. He walked over and said: “hello, it’s the girl of your dreams.”
It worked rather better than dares usually do. Four years later he proposed as Britannia sailed past the waterfalls at Flåm. Last May, a ship’s captain married Hannah and Mitchell in Azura’s Planet Bar, somewhere in the Greek Islands — and this summer they sailed again with their daughter, Mae.
Theirs is the romantic version. Here is the practical one — because a wedding at sea is a genuinely bookable, legally binding, surprisingly affordable thing. But only on some ships, and the difference is worth understanding before you fall for the idea.
Why a captain’s ceremony can be legally real
The magic word is Bermuda. Most of the P&O and Cunard fleets are registered there, and Bermudian law authorises the captain — or deputy captain — to conduct legally binding marriages at sea.
The paperwork is pleasingly maritime. Your marriage is recorded in the ship’s logbook. The banns are published in Bermuda — including in the Royal Gazette, a newspaper in Hamilton you have likely never read — and the licence is issued by Bermuda’s Registry General before you sail.
You need two witnesses. If you are eloping and have none, the ship provides two members of the crew, who P&O says will be honoured to do it.
The P&O version: what it costs
Per current listings, P&O’s intimate Just the Two of Us package runs around £2,700, and a Ceremony at Sea with up to ten guests around £3,200 — plus a Bermuda licence fee of about £850. Confirm current figures with P&O’s Ceremonies team, but budget roughly £3,500 to £4,000 on top of the cruise itself.
For that you get the captain, a private venue, a two-tier cake, Champagne, bouquet and buttonhole, dinner for two in a speciality restaurant, £100 of spa credit, your outfits pressed, and breakfast in bed as newlyweds. Because you are already aboard, the honeymoon starts the moment you leave the register.
Against a typical UK wedding running well past £20,000, the arithmetic is striking.
The Cunard version: the occasion of a lifetime
For couples who want the full ocean-liner theatre, Cunard’s Celebrations packages put the same Bermudian legal machinery inside White Star Service — a bellhop escorting you down the Grand Lobby staircase, the ceremony conducted by the captain or deputy, the certificate signed in front of your guests.
The shape is similar: up to ten guests included, ceremonies at 11am or 3.30pm on sea days, a licence fee on top, and dinner for two at The Steakhouse. Venues run from Queen Mary 2’s Boardroom to the Admiral’s Lounge on Queen Victoria, Queen Elizabeth and Queen Anne. Prices come via Cunard’s Ceremonies specialists.
Marry on a transatlantic crossing and your wedding venue is the last ocean liner ever built. Few registry offices compete.
The question to ask any other line
Here is the part the brochures rarely dwell on: on many major cruise lines, the captain’s ceremony at sea is symbolic — not a legal marriage at all.
Royal Caribbean, Norwegian, Celebrity, Disney and Carnival’s US brand all offer beautiful at-sea ceremonies that carry no legal standing. Couples handle the legal part at a courthouse before the cruise, or with a licensed officiant in port; the shipboard “wedding” is the celebration, not the marriage.
There is nothing wrong with that — many couples prefer it — but it is a different product, and lines do not always make the distinction loudly. Virgin Voyages, for instance, sells stylish adults-only wedding packages aboard its ships; if the legal status of the ceremony matters to you, make it the first question you ask, on any line.
If you want the ceremony at sea to be the marriage itself, the safe answer is a Bermuda-registered ship — which conveniently means the two most British fleets afloat.
The small print worth knowing
The ceremony happens on a sea day — not in port, and not on embarkation day. P&O offers morning or afternoon; Cunard sets 11am or 3.30pm.
Ten guests are included on both lines; more attract a surcharge. On P&O the wedding party earns perks too — on-board spending money, and up to three free cabins at one-in-twenty rates.
The admin has real deadlines: four months’ minimum notice, a planning form around 160 days out that must be returned within a fortnight, and documents — including divorce decrees or deed polls where relevant — 120 days before the day.
And one rule your best man should know now: on P&O, speeches are not permitted in the public venues. The toast happens at your table.
The bottom line
A wedding at sea on a Bermuda-registered ship is not a novelty ceremony with a certificate from the gift shop. It is a legal marriage, conducted by a captain, logged in a ship’s record and registered in Hamilton — for a fraction of what the average British wedding costs, honeymoon included.
The Stills met on a ship, got engaged from a ship, and married on one. For couples tempted to follow them, the romance takes care of itself. Book the licence paperwork like it is the wedding — because legally, it is.
Wedding guests driving to Southampton can compare every option in our 2026 cruise parking guide.
