The Tropical Botanical Garden at Menglun is the single most worthwhile day-trip from Jinghong. The garden occupies a wooded peninsula in a bend of the Luosuo River, about 75 km east of the city, and covers 1,125 hectares of cultivated tropical rainforest, palm collection, bamboo grove, vine garden, and medicinal plant beds. There are over 13,000 species in the collection — the largest such garden anywhere in the tropics.
Allow a full day. The eastern half (the "ornamental zone") has the major collections and can be walked in three hours; the western half is genuine forest with a longer trail through it. Electric carts shuttle visitors who do not want to walk. Buses run from Jinghong's bus station to Menglun in around 90 minutes.