Diamond King Hotel sits in Hanoi's Old Quarter, within a five-minute walk of Hoan Kiem Lake and the beer street. Breakfast runs until 10 a.m., with staff cooking one main dish to order and a buffet of milk, watermelon juice, bread and Vietnamese dishes. When a guest lost a phone, the hotel owner helped accompany them to the police and interpret. Corridor and neighbouring-room noise carries into the rooms, so soundproofing is weak.