Little Russell is a channel that divides the islands of Guernsey and Herm. Ferries coming to Guernsey pass through it and it’s frequently used as a stopping point for cruise liners when visiting the island. When the sea is particularly rough, ferries are sometimes held in Little Russell until it is safe to enter that harbour at St Peter Port.
Little Russell is the body of water over which the annual air display takes place. You can cross it in around 15 minutes in a small boat.
Great Russell sits between Herm and Sark.