Estrella Cocktailbar is a 12th-floor rooftop bar in Hanoi with views over Hoan Kiem Lake. It serves cocktails such as Mercury and Venus, along with Vietnamese dishes, Western dishes, and snacks. Around 3:30 p.m. it was not crowded, and mentioning a birthday brings out a cake. Cocktails are expensive, and without the large ice cube about 5cl of liquid remains.