Wai-O-Tapu is New Zealand's most colorful and fascinating geothermal wonderland. Explore pools glowing in neon shades of green, yellow, orange, and blue, created by thousands of years of volcanic activity and mineral deposits. Highlights include the iconic Champagne Pool with its orange silica rim, the fluorescent green Devil's Bath, the multi-colored Artist's Palette, and bubbling mud pools. Watch the Lady Knox Geyser erupt daily at 10:15am - arrive by 9:45am for the best viewing spots. A 3km walking loop takes you through all major attractions.