Find out how to plan your best trekking holidays in Yen Bai Vietnam with our hand-picked of best Yen Bai day walks, Yen Bai jungle treks, Yen Bai mountain hiking, trekking homestay packages. Options include not only Yen Bai trekking, hiking itineraries, but also a range of Yen Bai classic tours, Yen Bai boat trips, river kayaking, caving, road cycling, mountain biking holidays.