Siniya Island

The sand island lies flat in Umm Al Quwain's lagoon, barely higher than the water around it. Walk inland from the shore and 6th-century monastery walls emerge from the sand — the remains of a pre-Islamic Christian community that worshipped here while the Prophet Muhammad was still a child.

Siniya Island holds one of the oldest and most significant pre-Islamic Christian sites in the Persian Gulf — a 6th-century Nestorian monastery excavated by archaeologists in recent decades. The discovery reshaped understanding of religious diversity in pre-Islamic Arabia, placing an active Christian community on this sand island centuries before the region's conversion. The island also serves as nesting habitat for hawksbill turtles and lies within a lagoon system that supports dugongs and dolphins. Monastery ruins sit directly beside an empty beach — history and untouched shoreline occupying the same stretch of sand, with the quiet skyline of Umm Al Quwain across the water.