All scheduled travel to the islands is operated by Isles of Scilly Travel (part of the Isles of Scilly Steamship Group). There are four departure points from the mainland: Exeter, Newquay and Lands End if you fly by Skybus, and Penzance if you take the boat – the Scillonian III passenger ferry. St. Mary's is the main island on Scilly, and whichever way to you choose to arrive, this will be your first port of call.