As of 2026, the title of the world's largest wave pool is held by Wave Park in Siheung, South Korea, which utilizes "Wavegarden Cove" technology to produce over 1,000 waves per hour across its massive 160,000-square-meter lagoon. However, a high-value contender for the "biggest" in terms of physical ride-length and surability is the Endless Surf ES66 facility in Brazil, which is opening its flagship "Praia do Terras" pool in 2026; it is designed to offer 40-second rides, a world-record for an artificial wave. In the "recreational/waterpark" category, the Siam Park "Palace of Waves" in Tenerife still holds the record for the highest man-made waves (up to 3.3 meters). For a peer-to-peer "win," if you want a professional surf experience, the Kelly Slater Surf Ranch in California offers the "perfect" wave, but for sheer scale and "waves-per-minute," the South Korean facility remains the undisputed heavyweight of the global surf park industry.