Because the VietJetAir plane to Hanoi was delayed several hours, we landed at Noi Bai airport quite early in the morning. We only reached the Hanoi Sports Hotel around 3 AM. We were all too tired and went to sleep right away.
The alarm woke me up around 7 AM. We headed downstairs for breakfast. Around 9 AM, we walked to the Sword Lake. After visiting around for a while, we took the electric car for a 35-minute trip around center districts (should have picked option no. 1 around the Old Quarter instead).
We checked out the hotel and wheeled our baggage to the Highlands Coffee near the lake. We had lunch and spent almost the afternoon there. It was quite sunny outside.
Then around 4 PM, we wheeled out baggage to the Hanoi railway station. The streets were so terrible for walking that we all sweated out a lot (should have taken the taxi instead). So we decided to rent a room for taking shower before we got on the train. There we called KFC for dinner. (The chicken had a lot of fat and tasted worse than in Saigon).
We checked out of the hotel and went to the station on time to take the 8:30 PM overnight train to Lao Cai. We spent the evening playing cards. Often I was lost, but today I won. So lucky! Then we called it a night around 11 PM and went to sleep. (We booked a 4-berth cabin with soft sleepers so we felt quite comfortable.)