This area is densely covered with woods, such as planted Japanese Cedar, Formosan Incense-Cedar, Formosan Michelia, Primary Formosan Red Cypress, Red Bark Oak, Large-Leaf Nanmu and Landscaping Plants such as Cherry Blossoms. In addition, there are common tree ferns, Giant Elephant's Ears, and Formosan Sugar Palm along the trails and epiphyte-like Bird’s Nest Fern everywhere. Together, these plants make up views typical of subtropical creek forests. Gonocormus minutus, a special fern with only one layer of cells and no stoma, can be seen on damp rocks along the creek. The most charming view in Manyueyuan is of the spotted green maple forest. Every year from October until the following January, maple leaves turn from green to gold, then gradually to orange-red, starting at the hilltops. The red-leaf peak during autumn and winter is certainly one of the best views in northern Taiwan. This area is populated with many types of butterflies due to abundant food and nectar resources. There are 123 butterfly species in 9 families including the common jay, common blue bottle, Great Morrnon and Chinese Peacock (Papilio bianor). Besides butterflies, visitors can observe birds and frogs along the creek or on the self-guided trails. Varied Tit (Cyanistes varius) and Swinhoe’s frog are commonly spotted here.
Manyueyuan is famous for its waterfalls, red maple leaves, and numerous butterflies. Especially with its pure creek, this area is a high quality recreation destination that allows for a variety of activities such as, sightseeing, butterfly-watching, birdwatching, taking in the maples, mountainclimbing, hiking, forest bathing, taking photos, painting, engaging in wilderness fitness activities, and playing eco-games. It is also the starting point of the hike to Bechatian Mountain, which transforms into a breathtaking golden world speckled with Taiwan beech in late autumn. For a trip immersed in both nature and culture, visitors can take a look at the Baroque buildings on the historic Sanxia street, carvings at the Sanxia Temple and watch blue dyeing in the community.