 A Caledonian MacBrayne ferry , MV Lochnevis , links Rùm and the neighbouring Small Isles of Canna , Eigg and Muck , to the mainland port of Mallaig some 17 miles ( 27 km ) and 1 ½ hours sailing time away . The Lochnevis has a landing craft @-@ style stern ramp allowing vehicles to be driven onto and off the vessel at a new slipway constructed in 2001 . However , visitors are not normally permitted to bring vehicles to the Small Isles . During the summer months the islands are also served by Arisaig Marine 's ferry MV Sheerwater from Arisaig , 10 miles ( 16 km ) south of Mallaig . 
