With the exception of Saturdays during the summer timetable late March to late October the Calmac ferry MV Lochnevis only visits Muck once on the days it is scheduled to call. On those summer Saturdays, however, it is possible to take advantage of the two calls and make a short day return to the neighbouring island of Eigg from about 12:30 - 15:30. This is just enough time to climb Eigg's An Sgurr or cross the island to the Bay of Laig and Cleadale.
