Arguably some of the most interesting waterfalls in Vietnam, the Ban Gioc-Deitan Falls are fed by the Quay Son River, marking the Chinese border. Lush green forests line the backdrop to the falls, giving the appearance of a tropical paradise. Luckily, if you’re staying in Hanoi this waterfall is pretty easy to get to; just jump on a bus and it’ll take you right where you need to be! Having said this, it’s not recommended that you travel during the wet season (June – August). Instead, the best time to visit is between September and October to experience much calmer waters and a more relaxed atmosphere.