Lunan Water

The Lunan Water is an easterly flowing river in Angus, Scotland, that discharges to the North Sea 11 kilometres (6.8 mi) north of the town of Arbroath.

Much of this upper catchment is designated as nature reserves or Sites of Special Scientific Interest due to the diverse wetland habitats and wildlife here.

[2] The 15th-century ruins of Red Castle are located at the river mouth, close to Lunan.

The valley of the Lunan Water was historically known as Strathbeg, from the Scottish Gaelic Srath Beag, "little strath", in comparison to Strathmore.

You can help Wikipedia by expanding it.This article related to a river in Scotland is a stub.

Lunan Bay. The concrete blocks across the Lunan Water are the remains of tank traps installed during World War II
Lunan Bay from the south. Looking over the rooftops of the buildings at Corbie Knowe from the start of the cliff path. This modest vantage point provides a good view along the length of the bay.