Casuarina Beach is in Karainagar, Jaffna District, Sri Lanka, about 20 kilometers from Jaffna. The Casuarina Beach in Karainagar is also called and written as Casoorina, Cashoorina and few other variants. This is considered to be the best beach in the Jaffna Peninsula with white sand.
The beach got its name due the Casuarina Trees along the beach. The beach lies about 20 km off Jaffna and may take about 45 minutes to travel by a vehicl.