Runs 1½-hour high-speed boat trips from Elgol to an abandoned shark-hunting station on the island of Soay (adult/child £30/22), once owned by Ring of Bright Water author Gavin Maxwell. There are longer trips (£60/48, four hours) to Rum, Canna and Sanday to visit breeding colonies of puffins, with the chance of seeing minke whales on the way.