The temple is located at Maneswar near Sambalpur in Orissa. The temple pond which is home to more than a thousand turtles was built in the 16th century and is dedicated to Lord Shiva. But (kurma) turtle was an incarnation of Lord Vishnu and people here worship the turtles.
The pond is spread over four hectares and has earthen embankments and rocks on sides. Turtles rest and breed on these embankments. People feed them with rice and have learned to co-exist with them. (link)