Extra on board spending money is being offered by P&O Cruises on bookings made in the next month.
Up to £520 per balcony cabin on selected Mediterranean itineraries is available if booked by July 15.
The offer is applies to new select price bookings on Arvia, Britannia and Azura departing between June 20 this year and October 10, 2026.
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The promotion covers sailings to the Med from Southampton on board newest ship Arvia and flagship Britannia, or fly-cruises by Azura from Malta.
The extra on board spending money amount is based on two adults sharing a cabin and is combinable with an existing 10% deposit offer.
The £520 offer is based on a £1,749 per person 14-night sailing by Arvia from Southampton to La Coruna, Malaga, Alicante, Toulon, Barcelona and Cadiz on June 22, 2025.
Another example is a £999pp seven-night Azura fly-cruise from Malta on March 27 next year to Piraeus for Athens plus Heraklion and Souda Bay in Crete including £190 on board spending money.
The on board spending money can go towards dining in speciality restaurants, spa treatments and shore excursions.