Tourists to Dubai can buy their liquor at any of the 17 designated outlets of Mercantile and Marketing International (MMI), an authorized retailer of alcohol and issuer of liquor licenses to residents as well. This 30-day license is issued to tourists free of cost and only requires one to sign a form affirming their tourist status and an acknowledgment undertaking of the rules and regulations with regards to purchasing, transporting and consumption of alcohol in Dubai.
Know more about the Tourist alcohol license here