Visas and entry
Visa on arrival costs USD 35 to 50 depending on nationality and is issued at the main international border crossings, including Huay Xai opposite Chiang Khong in Thailand and Vientiane opposite Nong Khai. An e-visa in roughly the same price range can be arranged in advance through the official government portal, taking about 3 days to process, which is worth doing if you would rather not queue at the border with cash.
Over 160 nationalities qualify for visa-free entry, though the length of stay varies by passport: 30 days for ASEAN countries plus Russia and South Korea, and 15 days for Japan, Luxembourg and Switzerland among others. Check your own nationality’s specific allowance before assuming a general rule applies to you.
Payment
A deposit locks in your booking and the hotels, guides and transport that go with it, with the remaining balance due a set number of days before you arrive. The precise split depends on your itinerary, particularly if it includes the slow boat or the Lao–China railway, since both work on fixed schedules booked ahead of time. Your written quote spells out the exact figures rather than a blanket rule.
Cancellation
The nearer to departure you cancel, the more of the trip cost is lost, since hotels and boat or train seats have already been paid for on your behalf. Roughly speaking: cancel 45 days out or earlier and there is no charge at all, drop to 30 days and a quarter of the price is owed, tighten to 15 days and that becomes half, down to 10 days pushes it to three-quarters, and anything closer than that means the full amount. Peak-season hotel policies can override this scale, and any such exception gets flagged on your quote.
Lao etiquette
Luang Prabang’s morning alms round is a genuine act of religious devotion, not a staged photo opportunity, and it deserves to be treated that way. Watch from a respectful distance, keep your camera flash off, and stay quiet as the line of monks passes. Do not buy the sticky rice or snacks sold by street vendors specifically to hand to tourists for the alms round; that practice has become its own minor problem, and it is not how the ritual is meant to work.
Cover your shoulders and knees before entering any temple, remove your shoes at the door, and keep your hands away from anyone’s head, children not excepted, since Lao custom treats the head as the body’s most sacred part.
Good to know
Slow boats and fast boats on the Mekong are genuinely different experiences, not just different speeds. The slow boat from Huay Xai to Luang Prabang runs over two unhurried days with an overnight stop at Pakbeng; fast boats cover similar ground in a fraction of the time but sit low, loud and cramped, and are not something we book for our own itineraries.
Si Phan Don runs on its own clock. Some guesthouses cut power for part of the day, air conditioning is far from universal, and the pace of everything, meals included, is slower than in Luang Prabang or Vientiane. Treat that as the point of going rather than an inconvenience to work around.
Carry kip in cash, particularly on the islands, where ATMs are scarce and unreliable and card acceptance is close to nonexistent outside the larger towns. Mountain roads in the north wind considerably more than they look on a map, so pack accordingly if you are prone to motion sickness.