Explore the iconic Hanoi Old Quarter, a bustling area filled with 36 streets, each dedicated to a different trade. Walk around the narrow streets and admire the beautiful colonial architecture. Stop by the Thang Long Water Puppet Theatre for a unique puppetry performance, dating back to the 11th century. For lunch, head to Pho Thin for a bowl of delicious pho noodles. In the evening, make your way to Bia Hoi Junction for some cheap, fresh beer and people-watching.
Spend a day cruising around the stunning Halong Bay, a UNESCO World Heritage Site. Marvel at the thousands of limestone islands towering out of the emerald-green waters. Enjoy a seafood lunch on board and take part in activities like kayaking or swimming. Make sure to visit the Surprise Cave and the Ti Top Island viewpoint. Return to the Old Quarter in the late afternoon for dinner and drinks at Mad Botanist, a cool new bar with an amazing cocktail menu.
Enjoy a relaxing day around the gorgeous West Lake Area, an upscale district in Hanoi. Rent bicycles and go for a scenic ride around the lake. Stop by the Tran Quoc Pagoda, the oldest Buddhist temple in Hanoi, known for its magnificent lakeside scenery. For lunch, try Xoi Yen, a famous street food stall selling sticky rice with various toppings. In the evening, visit Cama ATK, a trendy bar with live music and unique cocktails.
If you have an extra day, consider visiting the Imperial Citadel of Thang Long, a UNESCO World Heritage Site with history dating back to the 11th century. For nightlife, check out Ta Hien Street, known as the "beer street" for its row of bars serving cheap beer. If you have less time, consider skipping Halong Bay and spending an extra day exploring Hanoi Old Quarter and its museums.