Northern Province is covered in tropical forests, with numerous rivers flowing through them. The province has a number of lagoons, the largest being Jaffna Lagoon, Nanthi Kadal, Chundikkulam Lagoon, Vadamarachchi Lagoon, Uppu Aru Lagoon, Kokkilai lagoon, Nai Aru Lagoon and Chalai Lagoon. Jaffna's historical sites varying from Hindu temples in Nallur to Buddhist ones in Kadurugoda speak of a rich heritage and an era where Hindus and Buddhists lived in peace and harmony.