Caotuo Sand Dune Geopark is a coastal sand dune geopark spanning Dayuan and Guanyin Districts in Taoyuan, designated in June 2020 as Taoyuan's first — and Taiwan's only — sand-dune-type geopark. The park stretches roughly 8.1 kilometers along the coast from the mouth of Laojie Creek in Dayuan to the mouth of Daku Creek in Guanyin, covering a total area of 284 hectares; dune height varies by wind and season, rising further during strong northeast monsoon periods.
Caotuo Sand Dune Geopark was formally designated by the Taoyuan City Government on June 11, 2020, as Taoyuan's first geopark and Taiwan's only sand-dune-type geopark. It stretches about 8.1 kilometers along the coast from the mouth of Laojie Creek in Dayuan District to the mouth of Daku Creek in Guanyin District, covering a total area of 284 hectares (18 hectares core zone, 22 hectares restoration zone, 244 hectares general zone); official surveys show dune height exceeding 10 meters along most sections.
What to See at Caotuo Sand Dune Geopark
Most of Taiwan's coastline consists of gravel beaches or rocky shores, making sand dune landforms relatively uncommon. The conditions for Caotuo's formation are an abundant coastal sand supply along the Taoyuan shore combined with the strong northeast monsoon, which has accumulated the current scale over a long period. The surface of the dunes is in constant motion under wind action; during strong wind periods (November to March, the peak of the northeast monsoon) the ripple patterns are clearest and the surface shape changes most rapidly.
The geopark has a trail and interpretive system explaining the geological principles behind dune formation and the evolution of the local coastal environment. Regarding vegetation, salt-tolerant and wind-resistant coastal plants form a sand-fixing plant belt along the dune margins — a setting for observing coastal plant ecology. In strong wind, sand grains can become airborne; visitors are advised to wear closed-toe shoes and a mask or scarf to protect nose and mouth on entry.
How to Make the Most of Your Visit
Practical Information
Getting There & Time
- Drive from the Guanyin interchange of Expressway 61 (Western Freeway) and follow signs to Caotuo Village; parking is available near the park.
- Public transport connections are limited. A private vehicle or rental scooter is recommended; the park is open all day.
Nearby Connections
- Guanyin District's lotus farm area can be combined on the same day. It is especially well-suited for pairing during the lotus season from June to September.
- Heading north along Expressway 61 connects to Xinwu coastline, extending the Taoyuan coastal landscape route.
Sources: Taoyuan City Geopark related planning materials. Photos pending replacement with Dio's own shots.
Frequently Asked Questions
When was Caotuo Sand Dune Geopark established?
It was officially designated by the Taoyuan City Government on June 11, 2020, becoming Taoyuan's first geopark.
How large is the geopark?
It extends about 8.1 kilometers along the coast and covers a total area of 284 hectares, divided into core, restoration, and general management zones.
When is the best time to observe the dune's wind ripples?
From November to March, during the peak northeast monsoon season, the ripple patterns are clearest, though visitors should watch for blowing sand.
Sources
- 自然地景保育網－草漯沙丘地質公園 — 農業部林業及自然保育署官方資料，公告日期、面積、分區與沙丘高度剖面資料
- 草漯沙丘(桃園市) — 林業及自然保育署自然主題館頁面，補充地質特性說明