Grimsay, south east of Benbecula is a tidal island of the Outer Hebrides.

It is connected to Benbecula by a causeway which carries the B891.

[3] An extension to the B891 now connects Grimsay to Eilean na Cille to the south east via a causeway.

The road was built at a cost of £1,800 to service the pier at Peter's Port, which was constructed in 1896 at cost of £2,000 – although the anchorage is awkward and use by people without local knowledge is discouraged.

This article about a location in the Western Isles is a stub.