Cork has a mountainous and flat landscape with many beaches and sea cliffs along its coast. The southwest of Ireland is known for its peninsulas and some in Cork include the Beara Peninsula, Sheep's Head, Mizen Head, and Brow Head. Brow Head is the most southerly point of mainland Ireland. There are many islands off the coast of the county, in particular, off West Cork. Carbery's Hundred Isles are the islands around Long Island Bay and Roaringwater Bay.