The Nam Ha National Protected Area covers the mountains north and west of Luang Namtha, stretching to the borders with China and Myanmar. It is an ASEAN Heritage Park of international biodiversity significance, home to tigers, elephants, black bears, clouded leopards, and an enormous variety of bird life — though the large mammals are rarely seen. The more visible diversity is cultural: dozens of ethnic communities live within or on the fringes of the park, each with distinct traditions, architecture, and dress.
Guided treks depart from Luang Namtha and run for 1–5 days, sleeping in villages on designated routes that the guide service manages carefully to prevent over-visitation of any single community. The most popular routes involve walking through montane forest, crossing the Nam Ha River, and spending a night with a Khmu or Akha village. Longer treks go deeper into the mountains and involve river crossings, bamboo shelters, and real forest immersion. The guide service centre in town handles bookings and matching of trekkers to available guides.