The Abu Dhabi Tourism Authority has said that hotels in the emirate saw a 16% rise in hotel guests during the first half of 2010 compared to the same period in 2009. Some 936,579 guests stayed in the emirate's 116 hotels and hotel apartments from January to June this year with guest nights rising 11% on the first half of 2009 to stand at 2.47 million. Over the past six months, occupancy levels have fallen by 18% to 64%, while revenue dropped by 5% to Dhs2.1bn. The authority is working with its stakeholders to try and increase the average length of stay of hotel guests, which currently stands at 2.6 nights. "We believe this issue will be positively impacted with a further spur to our leisure tourism proposition when Ferrari World Abu Dhabi opens this October 28," Mubarak Al Muhairi, director general, ADTA, said.