P&O Cruises has just doubled the reasons to book a holiday with them, with a brand new offer available from today giving away double onboard spending money on selected 2015 cruises when booked by January 31, 2015.

Offers are available on selected cruises departing between March 9 and August 31, 2015, and include peak season school holidays. Options include:

Spring Getaway - E509A
A seven night Mediterranean fly-cruise on Oceana departing April 15, 2015 starts from £849 per person including flights and transfers, now with £520 on board spending money per cabin.

May half-term - B508
Seven nights in Guernsey, Spain & France on Britannia departing May 23, 2015 starts from £799 per person, now with £260 on board spending money per cabin.

Summer holiday - N520
Seven nights in Guernsey, Portugal & Spain on Ventura departing July 19, 2015 starts from £699 per person, now with £320 on board spending money per cabin.

School summer holiday - N524
Seven nights in Guernsey, Portugal & Spain on Ventura departing August 23, 2015 starts from £699 per person, now with £380 on board spending money per cabin.