Lochindorb Castle is known as the Lair of the Wolf of Badenoch. It was built in the 13th century on a partly artificial island on the loch, when it was a stronghold of the Comyns. Later, the castle was occupied by the English and it was visited by Edward I in 1303. For awhile, it was used as a prison. At the end of the 14th century, it was gifted by King Robert II to his third son, Alexander Stewart, the Earl of Buchan - the Wolf of Badenoch.
Lochindorb is located about 6.5 miles north of Grantown-on-Spey on minor roads between the B9007 and the A939. You will need a car or bike to get there. The castle can only be reached by boat; so you'll need to find one of those too.