Whoops! Tearful Princess Charlotte takes a tumble at Hamburg Airport as the royal tour comes to a close... but it's all smiles from her brother as he gets a helicopter tour as an early birthday treat

This week’s gruelling royal tour has seen him having to be virtually dragged onto planes by his parents the Duke and Duchess of Cambridge as the family was ferried between Germany and Poland.

But Prince George needed little encouragement today when given the chance to see the inside of a helicopter at Hamburg airport.  

The third in line to the throne, who turns four tomorrow, couldn't hide his excitement as he took a peek at the interior of two aircrafts before waving goodbye to the German city and heading home.

One of the helicopters George explored was the H145 - also known at the E145 - is the same model as the one his father flies with the East Anglian Air Ambulance service.

Adorable Prince George looked ecstatic as the Cambridges bid farewell to Hamburg at the end of their five-day tour of Germany and Poland - but his little sister Charlotte was less happy, after taking a tumble on the tarmac.

The Cambridges en masse! William, Kate, George and Charlotte took a peek inside the helicopters before boarding their private jet back to the UK

Birthday boy! Prince George looks ecstatic as he views helicopter models H145 and H135 before departing from Hamburg airport on the last day of their official visit to Poland and Germany

Poor Princess Charlotte looked upset after taking a tumble on the tarmac at Hamburg airport this afternoon

Charlotte is comforted by her mother after taking a tumble. The little Princess has been on her best behaviour this week but all the travelling appeared to have got the better of her as she was seen dragging her heels and rubbing her eyes