Prince Harry turns 27 Thursday, but the Royal ginger won't be partying it up too hard. Instead, he'll be working.

According to E! Online, Harry will be spending the day at the Royal Air Force's Wattisham airfield in rural Suffolk, England, where he's completing his training as an Apache helicopter pilot.

Still finding time for fun, Harry was caught on video dancing -- and looking quite inebriated -- at a night club before jumping in a pool, fully clothed, while on vacation in Croatia in August. The video was captured by a fellow clubgoer at an exclusive open-air club called Veneranda.

Harry will be visiting California in early October, according to an Associated Press report, as part of his training course. The prince will train at the Naval Air Facility in El Centro, Calif., as well as a base in Arizona. Still, the young royal and his fellow pilots will catch a break and spend 48 hours in Lav Vegas midway during the training.

A military source told The Daily Mirror that the mini-break is a traditional breather for Apache trainees.

The course doesn't have much downtime, the source said. It's pretty intense. This is a chance for pilots to let their hair down, kick back and enjoy themselves.

Prince Harry
A file picture of Prince Harry REUTERS
Handout photograph shows Britains Prince Harry posing for the photographer at RAF Shawbury near Shrewsbury
Britain's Prince Harry is seen posing for a photograph in a Squirrel helicopter at RAF (Royal Air Force) Shawbury near Shrewsbury, England, in this June 10, 2009 handout photograph received in London on June 18, 2009. Princes William and Harry are both currently based at the home of the Defence Helicopter Flying School as they undergo military helicopter training courses. REUTERS
Britains Prince Harry plays polo in the Veuve Clicquot Manhattan Polo Classic on Governors Island in New York
Britain's Prince Harry plays polo in the Veuve Clicquot Manhattan Polo Classic on Governor's Island in New York May 30, 2009. REUTERS
Britain039s Prince Harry wears a blanket given to him in the village of Semongkong
Britain's Prince Harry wears a blanket given to him while visiting a school run by the charity Sentebale, which he had founded with Lesotho's Prince Seesio, in the village of Semongkong, Lesotho June 17, 2010. Princes Harry and William are on a two day tour to Lesotho. REUTERS
Britain039s Prince William and Prince Harry talk to co-organiser Mike Glover as they stand with their motorcycles before the start of the the Enduro Africa 08 charity motorcycle ride in Port Edward
Britain's Prince William (R) and Prince Harry (2-L) talk to co-organiser Mike Glover as they stand with their motorcycles before the start of the the Enduro Africa 08 charity motorcycle ride in Port Edward, about 150 km (93 miles) southwest of Durban, October 17, 2008. The almost entirely off-road motorcycle ride will raise money for UNICEF and Sentebale, founded in 2006 by Prince Harry and Lesotho's Prince Seeiso, for projects in South Africa and Lesotho. Photo taken October 17. REUTERS/
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