Lagavulin 
Lagavulin is located between Laphraoig and Ardbeg on the southeast coast of Islay. The distillery produces 2,400,000 litres a year for its 16 year old whisky. The shop and visitor centre is an unexpected but pleasant surprise with its tongue-and-groove panelled walls and weathered look. The distillery celebrated its 200th anniversary in 2016.
Lagavulin is owned by Diageo and 30% of Lagavulin's output goes into White Horse, a blended whisky. The remaining 70% goes to produce single malts under the Lagavulin name. Lagavulin currently produces a 200th anniversary 8 year old, its usual 16 year old and various other editions including a distiller's edition with 3-6 months finishing in sherry casks.
Spirit was first made from surplus grain and used by doctors as a treatment for various ailments. The Lagavulin manager fell out with Laphroaig, for whom he was an agent, and started up the Malt Mill distillery on the Lagavulin site in attempt to replicate the Laphroaig spirit. The output from Malt Mill always went into blended spirits, such as White Horse, and there are no known bottles of Malt Mill single malt. Or are there? - have a look here. The Malt Mill distillery closed in 1962 and a bottle of new make spirit exists at Lagavulin, pictured here.
Whisky On The Waves
This tasting was a Feis special event at £35 and comprised a fast boat ride along the southern shore of Islay together with tastings of the Feis bottling, a 14 year old unique bottling, matured in a combination of American and European Oak and, for the first time, finished in Armagnac casks. Priced at £220 and available from the distillery.