River Tay
The River Tay emerges from Loch Tay at Kenmore, and flows from there to Perth which, in historical times, was its lowest bridging point. Below Perth the river becomes tidal and enters the Firth of Tay. The largest city on the river, Dundee, lies on the north bank of the Firth. On reaching the North Sea, the River Tay has flowed from west to east across central Scotland.
Loch Tay
It is a long, narrow loch of around long, and typically around wide, following the line of the strath from the south west to north east. It is the sixth-largest loch in Scotland by area and over deep at its deepest.