From publisher blurb:
The Mhaun Islands are a collection of hilly islands covered with mainly heather and gorse, the main island, however, does support a small forest of hardy trees. These islands are well drained with some areas having so many small streams running through them that moorland turns into a slushy bog. As the moors reach the coast the terrain shifts somewhat into pleasant rolling meadows. These meadows run down to the many sheltered bays which provide the home for the main settlements of the Isles.
The bays around the coast are quite deep and tend to have quite rocky headlands, which provide good shelter from storms.
The deep water actually reaching the coast itself in some places making the whole coastline treacherous for any foolish enough to swim here or sail without a pilot.