Kate Middleton & Prince Williams View Helicopters in Germany with George & Charlotte!

Prince William and Kate Middleton walk hand-in-hand with their adorable kids Prince George and Princess Charlotte on Friday (July 21) in Hamburg, Germany.

The royal family toured helicopter models before departing from Hamburg airport on the last day of their visit to Poland and Germany.

Earlier in the day, Will and Kate received a quick lesson on how to conduct an orchestra at Elbphilharmonie concert hall.

George celebrates his fourth birthday TOMORROW (July 22). We hope he has a great day!

FYI: Kate is wearing an Emilia Wickstead dress, Gianvito Rossi shoes, and an Anya Hindmarch clutch.

35+ pictures inside of Prince William and Kate Middleton on their last day in Germany…