The hidden gems of the Inner Hebrides. In particular Eigg is wonderful and is topped off with An Sgurr, a dramatic central mountain that is a much easier walk than it looks. There are sandy beaches and caves along the shoreline and a fascinating a bloody history. Rum is quite different with dramatic black cliffs that rise steeply up from the sea with its main attraction being the extraordinary red sandstone Kinloch Castle. You can take a non-disembarking trip from Mallaig if you do not have the time to see the islands better and in the summer smaller ferries also operate from Arisaig.
On Rhum the two identified beauty spots are the Kinloch Glen and South Side Nature Trails and Rhum National Nature Reserve (ie most of the island!). Eigg we consider to be one of the most beautiful places to visit in the whole of Scotland. The Sgurr is a perfect little mountain to walk up with a wonderful view from the top and the Massacre Caves and Singing sands are also great to visit.
It is the walking around the beaches and coastline caves of Eigg that is the main attraction of the island, in particular on the North-west side of the island and Laig bay. There is also a visitor centre at The Old Post office.