Dubai is one of seven emirates in the United Arab Emirates located on the southeast coast of the Persian Gulf. It has the largest population in the UAE and its economy has transitioned from being based on oil to tourism, real estate, and financial services. The climate is hot and arid. The population is diverse, with only 17% consisting of UAE nationals, and the majority being Asian expatriates from countries like India. Islam is the official religion, though other faiths can worship freely. Culture blends Arab and Islamic influences with its international community. Transportation includes the metro, taxis, buses, and a water taxi system.