tea shrubs, mae salong chinese yunnan tea village, thailand

chiang rai chinese tea village mae hong son salong santikhiri southeast asia center thailand yunnan agriculture agrotourism architecture building bush camellia sinensis cottage countryside cultivation ecotourism environment estate evergreen farm farmland garden harvest highland indochina landmark landscape mountain nature north oolong panorama park plant plantation scenery shrub siam sightseeing slope soil house thai highlands tourism travel