Riyue Tan, Nantou’s sun-and-moon lake in the hills

Riyue Tan in Nantou, central Taiwan, is a highland lake where water, hills and Lalu Island together trace a distinctive outline of sun and moon.

Riyue Tan in Nantou, known internationally as Sun Moon Lake, is a highland lake in central Taiwan where open water, forested hills and a small island together form a distinctive sun-and-moon outline.Sun Moon Lake Set in Yuchi Township in Nantou County, the lake sits at an elevation of around 760 m (2,493 ft), so the basin reads as an upland landscape framed by mountains rather than a lowland reservoir.the largest insjön in Taiwan

The sun-and-moon shape and the basin of water

Riyue Tan takes its name from the way the lake’s outline has been described: the water is divided by Lalu Island into two distinct halves, with one side likened to a round sun and the other to a crescent moon.the lake’s two lobes The main body of water stretches across a surface area of about 7.93 km² (3.06 mi²), with recorded depths around 27 m (89 ft), so Riyue Tan presents as a substantial basin rather than a small pond or ornamental lake.surface area and depth

The lake is often described as Taiwan’s largest inland body of water, and the wide sheet of water between the surrounding slopes confirms that scale.Taiwan's largest insjön Forested hills and mid-range mountains rise around the basin, with peaks such as Mount Shuishe and Mount Dajian enclosing the lake from opposing sides and creating a sense of enclosure that shifts as views open along different stretches of shoreline.surrounded by Mount Shuishe and Mount Dajian

Landscape, temples and lakeside settlements

Riyue Tan lies in Yuchi Township in Nantou County, roughly near the geographic centre of Taiwan, in a mountainous interior region distinct from the island’s low coastal plains.set in Nantou County in the island’s mountainous center The shoreline alternates between wooded slopes, temple precincts and small settlements, so that stretches of quiet water are punctuated by piers, shrines and clusters of buildings at intervals around the basin.an alpine lake in Yuchi Township

Sun Moon Lake has long been a focal point within this part of Nantou, and its combination of broad water, wooded hillsides and island temples gives it a character distinct from reservoirs or coastal lagoons elsewhere in Taiwan.the lake widely known in English as Sun Moon Lake Viewed from different points along the shore or from higher ground, the relationship between the main basin, Lalu Island and the surrounding hills shifts, revealing the paired forms of the “sun” and “moon” more clearly from some angles than from others.

Riyue Tan in the wider geography of central Taiwan

Geographically, Riyue Tan sits inland from Taiwan’s western coastal cities, in a corridor of hills and mountains that forms the island’s central spine.highland lake in central Taiwan Yuchi Township and the lake are connected by road to urban centres such as Taichung, so Riyue Tan is reached by travelling inland from the coastal plains into higher terrain where the basin opens between the surrounding ridges.access runs through Taichung by rail and bus

The elevation of around 760 m (2,493 ft) means the lake belongs to Taiwan’s upland belt, a zone where slopes drop towards the water and views carry across ridgelines rather than over flat countryside.748 meter elevation Within Nantou County, the presence of a lake of this size amid mountainous terrain has shaped how roads, villages and scenic points relate to the water, producing a ring of accessible shoreline threaded between steeper hillsides and the basin itself.a lake in Nantou, located in the middle of Taiwan

Visiting Riyue Tan: what travellers from Western Europe should know

• Riyue Tan lies in Yuchi Township, Nantou County, in central Taiwan, inland from the island’s western coastal cities and linked by road to hubs such as Taichung.
• The lake sits at around 760 m (2,493 ft) above sea level, with approaches that follow winding mountain roads and lakeside paths that can include slopes and stairways.
• Mount Shuishe and Mount Dajian rise on opposing sides of the basin, so viewpoints can involve short uphill walks on paved paths or stepped routes above the water.
• The official language is Chinese and the currency is the New Taiwan dollar.
• Entry requirements depend on your nationality; UK travellers can check the FCDO travel advice at gov.uk/foreign-travel-advice, Irish travellers the Department of Foreign Affairs at ireland.ie.

Searching for Riyue Tan on social platforms

These links open searches for Riyue Tan on each platform.

Frequently asked questions about Riyue Tan

Where is Riyue Tan located within Taiwan?

Riyue Tan is in Yuchi Township, Nantou County, in central Taiwan, inland from the island’s western coastal plains and framed by mid-range mountains.

What can visitors expect when they arrive at the lake?

Visitors encounter a broad basin of water ringed by hills, with Lalu Island dividing the lake into two contrasting halves and temples, piers and settlements along parts of the shore.

What makes Riyue Tan distinctive compared with other lakes?

The combination of its sun-and-moon outline, its status as the largest lake in Taiwan and its upland setting among mountains gives Riyue Tan a character that is strongly tied to this part of Nantou.