Tianliao Moon World Geopark is Taiwan's most extensive and best-preserved badland landscape, shaped by Miocene mudstone eroded unevenly by rainwater into bare, jagged hills that resemble the lunar surface from a distance, with the richest orange-red tones appearing at dusk.
Tianliao Moon World is located in the Chongde and Guting areas of Tianliao District, Kaohsiung, bordered by the Erren River toward Tainan. The terrain is composed of Miocene mudstone (grey-green argillite); because the mudstone has fine, loosely bonded particles and low permeability, it swells and softens with rain and cracks as it dries, and this repeated cycle of differential erosion produced the badland landscape — one of Taiwan's most developed badland and mud-volcano regions. (Note: figures such as a '66-hectare' park area circulate online, but no official geopark designation document could be verified, so that figure is not cited here and is marked unconfirmed.)
Highlights of Tianliao Moon World Geopark
Tianliao Moon World Geopark is located in Tianliao District, Kaohsiung. The badland terrain was formed by differential erosion of Miocene mudstone (commonly called grey-green argillite): in the rainy season the mudstone swells and softens on contact with water; in the dry season it contracts and cracks. This ongoing cycle produces smooth mirror-like mudstone slopes and sharp-ridged gullies. The extremely high salt content of the surface prevents most plants from growing; only a few salt-tolerant species appear here and there.
The park has viewing platforms and wooden boardwalks for safe close-up viewing of the mudstone terrain. The color of the mudstone shifts with moisture and light — grey-white when dry on a sunny day, turning deep grey-blue-green after rain. At sunset, when orange light strikes the hillsides at a low angle, the range of tones is at its richest, making it the universally recognized best time for photographers to visit. Mud volcanoes (gas-venting landscape features) can also be found in the Tianliao area.
How to Make the Most of Your Visit
Practical Information
Getting There & Timing
- From Kaohsiung city center, take Provincial Highway 28 toward Tianliao — about 50 minutes by car. Public transport options are very limited; driving is strongly recommended.
- The geopark car park is free. The trails are open year-round with no admission fee; viewing platform facilities are basic.
- After rain or typhoons the roads can be muddy; watch for skidding, and do not enter the badland trails until conditions are dry.
Nearby Connections
- Combine with Yanchao Wushanping Mud Volcano Nature Reserve, which shares the same badland belt as Tianliao — together they make a half-day Kaohsiung geology theme trip.
- On the way back, stop in Qishan town for a meal. Qishan Old Street and banana culture are an easy, pleasant add-on along the route.
Source: Kaohsiung City Government Tianliao Moon World Geopark interpretive materials and Central Geological Survey badland terrain research. Photos pending replacement with Dio's own shots.
Frequently Asked Questions
How did Tianliao Moon World's terrain form?
It formed from long-term differential erosion of Miocene mudstone by rainwater, creating bare, jagged badland hills.
Where is Tianliao Moon World?
It's in Tianliao District, Kaohsiung, bordered by the Erren River toward Tainan.
When is the best time to visit?
At dusk, when the mudstone shows the richest orange-red tones — widely regarded as the best time for photography.
Can you visit after rain?
After heavy rain the mudstone surface is wet, slippery, and risks sinking; visit only in dry weather.
Sources
- 月世界 - 維基百科 — 惡地成因與地理位置