After the destruction of the asuras of the previous Kretha Yukam, Nathan stayed in the sea-shore of Thiruchendur as Kantha.
The Samudra manthan - wherein Devas and Asuras churn the ocean of milk, with Vishnu's Kurma Avatar (also standing on top of the mountain in his four-armed form) carrying a mountain as a pivot - is showcased at Suvarnabhumi Airport in Bangkok.
Here Vishnu himself, having in days of yore slain the Asuras, Madhu and Kaitabha, had performed his ablutions (9:49).