Overview
The Yin Yang Sea is a remarkable natural phenomenon along the coast between Jiufen and Jinguashi. Pyrite minerals from nearby mines flow into the sea and create a natural gradient from yellow to gold to ocean blue — looking as though 'yin and yang' meet on the surface. The color boundary shifts daily depending on mineral flow and tides. The phenomenon is non-toxic and safe, and it pairs perfectly with a visit to the Jinguashi Gold Museum. Free to view. A 10-minute walk or 5-minute drive from Jinguashi.
Travel Tips
Clear-weather mornings show the sharpest color contrast. Combine with a visit to the Gold Museum.
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🇰🇷 Tips for Korean Travelers
Practical info for Korean travelers heading to Jiufen, Taiwan from Seoul (ICN).
Korean Passport · Visa
Check visa rules for Taiwan on the Korean MOFA travel advisory site before flying — visa-free, visa-on-arrival or e-visa rules change often. Keep at least 6 months of passport validity.
Flight from Incheon (ICN)
Compare direct and connecting flights from Incheon (ICN) to Jiufen on Skyscanner or Google Flights. Early-morning departures from Korea are usually the cheapest option.
KRW ↔ Local Currency
Check the live FX widget above for the latest KRW rate. Korean travel cards like Travel Wallet, Hana EZ and Toss FX offer free local ATM withdrawals and competitive rates.
Korean Community · Korean Food
Many cities have an active Korean community in Jiufen with Korean restaurants, mini-marts, and Korean-speaking guides. Search Naver Cafe or KakaoTalk open chats for "Jiufen 한인" before you go.
Attractions near Yin Yang Sea
Tap a pin on the map to jump to that attraction.
Keelung Mountain Lookout
At 588m, a panoramic view of Jiufen, Jinguashi, and the East Coast.
📍 2.6km away
Jiufen Old Street
Narrow lanes lined with red lanterns, traditional teahouses, and tempting snacks.
📍 2.7km away
Things to Do in Jiufen
Jiufen Old Street Food Tour
Explore the lantern-lined alleys of Jiufen sampling taro balls, fish ball soup, peanut ice cream rolls, and tea eggs on a snack-filled walking tour.
Jinguashi Gold Museum
Visit the Gold Museum near Jiufen to explore Japanese-era mining history. Touch a 220kg gold bar and walk through an actual mine tunnel.
Jiufen-Jinguashi Trail Trekking
Trek the trail connecting Jiufen and Jinguashi for stunning north coast views. Abandoned mine ruins blend with mountain scenery.