The small stuff that makes a trip smooth: money, SIM cards, what to pack, etiquette and staying safe. Quick, practical answers below.
The currency is the Vietnamese dong (VND). Carry cash for boat tickets, small restaurants and rural sights, cards are accepted only at bigger hotels. ATMs are in Ninh Binh city and Tam Coc. A tip for your boat rower is customary.
A local tourist SIM or eSIM (Viettel, Mobifone) is cheap and gives reliable 4G across the area, useful for maps and Grab. Wi-Fi is standard in homestays and cafes.
Dress respectfully at religious sites, ask before photographing people, and agree prices before scooter rentals or unmetered rides. Ninh Binh is very safe; the main risks are sun, heat and inexperienced scooter riding, see the local safety tips and Hoa Lu Tourism.
The Mua Cave climb and a day of cycling take their toll. A local massage is inexpensive and genuinely restorative, Massage Ninh Binh is minutes from Tam Coc, or for something gentler try a reiki session. See all the spa and wellness options.
Health: don't drink tap water; bottled or filtered only. Bring any personal medication, rural pharmacies are limited.