Sheikh Hamed bin Zayed Al Nahyan, Chief of the Abu Dhabi Crown Prince's Court, left here today after he attended the activities of the 24th session of the National Festival for Heritage and Culture. At the airport, he was seen off by Prince Abdulaziz bin Abdullah bin Abdulaziz Al Saud, Advisor to the Custodian of the Two Holy Mosques King Abdullah bin Abdulaziz, and other officials.