Martnaham Loch
 Martnaham Loch (NS 396 172) is a freshwater loch lying across the border between East and South Ayrshire Council Areas 2 km from Coylton in the parishes of Coylton and Dalrymple 3 miles from Ayr. The loch lies along an axis from north-east to south-west. The remains of a castle lie on a possibly artificial islet within the loch. The Campbells of Loudoun once held the lands followed by the Kennedys of Cassillis.