5. Ondol heating method: The Ondol heating technique, which consists of heating stone slabs less than the ground with fire, is a common feature in conventional Korean architecture like All those uncovered on Jeju Island. Many structures with the Folks Village also use this method for heating in the course https://angelo6jw7c.pointblog.net/how-much-you-need-to-expect-you-ll-pay-for-a-good-jeju-culture-73669761