Moon Men Cocktail Bar is a bar on the fifth floor overlooking Hanoi Cathedral, serving classic and signature cocktails along with whisky and vodka. Its drinks include the Singapore Sling and the Snowball, and the menu incorporates Hanoi flavors. The entrance can be confusing, but a staff member is on the first floor to direct guests, and the cathedral lights turn off at 10:30 p.m. The venue is quite small.