Na Ka plum valley is located about 6 km from Moc Chau town (Son La), famous for its plum gardens stretching across the hillsides, especially brilliant in spring when plum blossoms cover the entire valley in white. During the harvest season (May-June), visitors can experience plum picking in the garden, enjoying the sweet and crunchy flavor of Moc Chau plums amidst a peaceful and poetic natural setting. This is an ideal destination for those who love taking photos, exploring indigenous culture and enjoying the fresh air of the highlands.