📜 Artificial pond in Biei, Japan, created in 1988 to prevent mudflows from Mount Tokachi. 🔍 Its brilliant blue hue is caused by aluminum hydroxide reflecting shorter-wavelength blue light. # Why Go ✨ Mesmerizingly colorful and ethereal appearance, with hues that change with angle, time, and season. 📸 Stunning photo opportunities, especially with unique reflections of dead silver birch and larch trees. 💡 Illuminated during winter for a mystical glow. 🍎 Featured as an Apple OS X wallpaper. # Why Avoid ⚠️ Its brilliant blue color depends on weather and may not always be vivid, and its appearance can be affected by wind and rain. 🚶 Requires a 5-10 minute walk from the parking lot. # Cost 💰 Free entry to visit the pond. # Hours 🕒 Open all year round, though access may be closed due to inclement weather. # Getting There 🚗 Accessible by car or bus from Sapporo/Biei. # Parking 🅿️ 220 spaces available, charged 7:00-19:00 (May-Oct.) and 8:00-21:30 (Nov.-Apr.).