Pantai Pasir Tengkorak (GPS: 6.43067, 99.72574), literally Beach of Sandy Skulls, and also known as Beach of Mysteries, is a stretch of public beach on the northern side of Pulau Langkawi, on the way towards Datai Bay.
The name Pantai Pasir Tengkorak, according to local folklore, is due to the casualty from a legendary battle between Garuda and Jentayu. Another local belief has it that there is a giant whirlpool off Pantai Pasir Tengkorak that swallows unwary ships, depositing the skulls of the ill-fated crew on the beach, hence the name Pantai Pasir Tengkorak. Yet another local belief accorded the name to the many casualties resulting from the Siamese attack on Langkawi and the villagers' attempt to defend themselves.