If you ever find yourself in Hanoi and wanting to get out of the bustling city for a few days, I can highly recommend the area of Sa Pa and Ninh Binh. Both have stunning nature.
On this trip we stayed in Amica House in Lao Chai village just outside the Sapa town, it's on a hill overlooking a valley with rice paddies. This homestay is owned by Guide Francophone who also guided us through the area, I would highly recommend staying there or trekking with Franco.