Basically, The itinerary looks like below:

Day 1 : Arrive in Hanoi and Overnight train to Lao Cai
+ At 08:30pm, We pick u up from your hotel in Hanoi and take you to train station for overnight train around 10pm.

Day 2 : Sapa - Muong Hoa Valley- Lao Chai Village - Ta Van Village - Overnight at hotel in Sapa
+ We pick u up by Car/Bus from Lao Cai station and take you to Sapa town for 45 mins driving.
+ U have breakfast
+ 9am : Depart for trekking tour to local villages, Muong Hoa Valley.
+12:00: Have lunch

13:30: back to Hotel . Free time. Dinner at hotel.Overnight homestay

Included: Breakfast , lunch , dinner

Day 3 : Local villages - Overnight train back to Hanoi
+ U have breakfast at homestay
+ Departing for other villages nearby
+12:00: Have lunch
+ 13:30: back to Hotel . Free time. Then Dinner at hotel
+ 18:00: Car/Bus pick up around for train station

Included: Breakfast , lunch , dinner

Day 4: Arrive in Hanoi station around 05:20am. Tour ends.