From their website:
“Kaua’i’s Hindu Monastery, founded in 1970 by Satguru Sivaya Subramuniyaswami (1927-2001), is under the spiritual direction of his successor, Satguru Bodhinatha Veylanswami. It is part of the Saiva Siddhanta Church, founded in Sri Lanka in 1949. Its spiritual heritage derives from the Nandinatha Sampradaya, which goes back to 2,200 bce.”