SUPER!

“For the next traveller figuring the trains out. We took a SP3 (hanoi to sapa) and SP4 (sapa to hanoi) and this is how it goes.

Viet rails operate the entire train and it has different cars. Different cars are managed by difference companies and we went with VIC SAPA. They are a real vendor and 1 day prior to any departure, just email them and they will send you a photo of your train ticket through your email.

Their staff will also wait for you at train station or you can call them to collect your ticket. He will show you all the way to the berth.”

Review link: https://www.tripadvisor.com/ShowUserReviews-g311304-d25070205-r871007636-VIC_SAPA_TRAIN-Sapa_Lao_Cai_Province.html