Kadavul is an ancient Tamil word for God, meaning He who is both immanent and transcendent. Kadavul Temple was established in 1973 by Sivaya Subramuniyaswami. It is one of two temples in Kauai Aadheenam. Other temple is Iraivan Temple. It houses 39-inch-tall Crystal Sivalingam that will one day be the central icon in Iraivan Temple. It's Crystal Sivalingam is believed to be the largest six-sided, single-pointed crystal ever found. In future Crystal Sivalingam will housed in the Iraivan Temple. Kadavul Temple is located next to the Wailua River and 8 km from Mount Waialeale. Crystal Sivalingam is a 320 kg, 39-inch-tall, uncut quartz crystal, believed to be the largest six-sided, single-pointed crystal ever found.