An Ultimate Exploration of Two Hidden Gems on Green Island

Green Island is not just a paradise for snorkeling or a site of historical prison ruins. If you’re willing to slow down and explore the island on foot, you’ll discover even more surprising landscapes. Today, I’m taking you to two of my long-kept secret spots: the serene Green Island Lighthouse standing on the northern coast, and the mysterious Wuyou Cave hidden among the reefs, seemingly known only to time itself. 🕊️ Green Island Lighthouse｜Standing at the Edge of the Wind, Gazing at the Vast Blue Sky Located on the northern tip of Green Island, the white lighthouse is a landmark at the island’s northernmost point. It’s understated yet undeniably present. Built in 1939, the lighthouse commemorates the brave rescue efforts of local residents when the American merchant ship "President Hoover" ran aground near Green Island. Later, with funding from the U.S., the lighthouse was constructed as both a memorial and a navigational guide. A short 5-minute walk from the entrance leads you to the lighthouse, with expansive grasslands, blue skies, and sea breezes along the way. While the interior of the lighthouse is not open for tours, taking photos from the outside and gazing at the horizon is incredibly soothing. 📸 Photo Tips: ✔ White lighthouse + blue sky for perfect composition ✔ Stunning backlit silhouettes at sunset ✔ Portrait shots on the coastal grasslands ✔ Strong sea breeze—secure your hat and skirt while taking photos! 🌊 Wuyou Cave｜A Tranquil Sea Erosion Cave, Green Island’s Most Mysterious Coastal Spot When it comes to Green Island’s most enigmatic location, Wuyou Cave takes the crown. Situated on the southwestern corner of the island, this sea erosion cave is said to be named after its perpetually slippery walls, which feel as if coated with "black oil" (a dark lubricant). Due to significant tidal differences, it’s recommended to visit during low tide for safety and to fully explore the cave’s interior and intertidal zone. You can walk along the reef paths carved by the sea, observing crabs, hermit crabs, seaweed, and various small creatures, offering a unique close-up encounter with nature. 💡 Note: This is an undeveloped site, so wear non-slip shoes, be cautious of tides and rock crevices, and ideally visit with companions. 📸 Photo Highlights: ✔ Arch-like structure of the sea erosion cave ✔ Dramatic moments of waves crashing against rocks ✔ Contrasting colors of vibrant blue seawater and gray rock walls ✔ Macro photography of crabs, sea urchins, and intertidal zone ecology 🚗 Transportation and Travel Tips: 🗺️ Green Island Lighthouse: About a 10-minute scooter ride from Nanliao Harbor, follow the coastal road. 🗺️ Wuyou Cave: About a 5-minute drive from Chaojih Hot Springs, look for signs and enter on foot. Recommended gear: sun-protective clothing, non-slip shoes, and a sun hat. 📅 Best times: Morning (optimal lighting for the lighthouse) or evening (soft, warm light). 🚨 Stay safe, respect nature, and avoid damaging rocks or intertidal ecosystems. 🧭 Suggested One-Day Green Island Exploration: 1️⃣ Morning: Snorkeling / Diving experience 2️⃣ Noon: Enjoy a seafood lunch at Nanliao Old Street 3️⃣ Afternoon: Visit Green Island Lighthouse for photos and a stroll 4️⃣ Before sunset: Explore Wuyou Cave (during low tide) 5️⃣ Evening: Return to your accommodation for sunset views or soak in Chaojih Hot Springs 🌅♨️ Traveling isn’t just about visiting popular spots; it’s about going to places where you’ll remember the sound of the wind and the taste of the sea. Green Island Lighthouse and Wuyou Cave are two of the island’s gentlest yet most profound corners. I recommend slowing down, bringing your camera and curiosity, and immersing yourself in these stories of the sea, wind, and time.