A full dress rehearsal to ensure the smooth sailing of the Brunei-Muara District get-together ceremony for His Majesty Sultan Haji Hassanal Bolkiah Mu’izzaddin Waddaulah ibni Al-Marhum Sultan Haji Omar ‘Ali Saifuddien Sa’adul Khairi Waddien, Sultan and Yang Di-Pertuan of Brunei Darussalam in conjunction with the monarch’s 77th birthday celebration was held at the Taman Haji