A Once-in-a-Lifetime Experience! Witness the Sunrise at Green Island's Underwater Hot Spring.

In Taiwan, hot springs are not uncommon, but the chance to soak in one while watching the sunrise is a rare treat. Green Island's Asahi Hot Spring is one such magical place—one of only three underwater hot springs in the world and the only one in Taiwan where you can gaze directly at the Pacific Ocean's sunrise.

♨ A Rare Underwater Hot Spring
Located on the southeastern corner of Green Island, the Asahi Hot Spring's waters emerge from underground rock crevices, blending with seawater and the rhythmic sound of waves, carrying a unique oceanic aroma. The spring is a saline sulfur spring with temperatures ranging from 60–70°C. After cooling and mixing with seawater, it becomes perfect for bathing.

While soaking in the natural stone pools surrounded by coastal erosion formations, you can look up at a star-filled sky, listen to the sound of waves, and breathe in the faint sulfur scent. The warm water relaxes your body, and your mind gradually finds peace.

🌅 Bathing with the Sunrise
The name "Asahi" (Morning Sun) is no coincidence. The most enchanting moment here is around 4 or 5 a.m. when the sky begins to brighten, and visitors quietly gather by the hot spring pools, waiting for the first hint of orange-red light.

As the sun slowly rises above the Pacific horizon, the sea turns golden, blending with the steam from the hot springs to create a dreamlike scene. In that moment, time seems to stand still, and you won't want to look away. Many say that watching the sunrise at Asahi Hot Spring is a once-in-a-lifetime experience.

🌊 Beyond the Hot Spring
The hot spring area features three outdoor natural tidal pools, an indoor spa pool, and a small shower area, catering to those who prefer to avoid the sea breeze. During low tide, the natural pools' shapes become more distinct, and you can observe the interplay of hot spring water and ocean waves, as if nature itself designed these baths.

Nearby, there are trails and observation platforms where you can take a leisurely stroll along the coast after your soak, admiring unique rock formations and the azure sea. Photography enthusiasts will find the low-tide hot spring pools reflecting the sky to be a perfect backdrop for dreamy shots.

📍 Travel Tips
• Best Time: Early morning to watch the sunrise while soaking in the hot spring.
• What to Bring: Swimsuit, towel, and non-slip sandals.
• Safety Note: The natural pool bottoms have rocks and seaweed, so walk carefully to avoid slipping.
• Admission: Tickets are required for entry; check opening hours in advance.

Green Island's Asahi Hot Spring is more than just a place to soak—it's a journey that connects you with the ocean, sky, and earth. When you witness the first rays of sunrise reflecting on the spring waters, you'll understand how this ocean and hot spring have captured a moment in time, becoming one of the warmest memories in your heart.