There are some fantastic online resources out there for anyone interested in learning the language.
http://www.learngaelic.net is probably the best of those although http://dailygael.com/ are running a series of 'learn gaelic with...' articles that don't take themselves too seriously ????
For those in London, https://www.citylit.ac.uk/courses/languages/celtic/gaelic-scottish links to the CityLit Gaelic course, current home of the (allegedly) oldest continuous Scots Gaelic course in the world. The beginners' level is well worth it to get more out of Scottish trips.