We spent 4 nights on Achill Island earlier this year for my birthday... just me, my wife and our dog. It was perfect.
We travelled to Achill with the intention of staying in the cottage the entire time (except for dog walks), so we're probably not the best to speak on the activities available on the island. We simply wanted somewhere with no internet, no computers and no hassle. We brought all of our food for the 4 days with us, but I believe there is a supermarket within 1 mile of the cottage.
The cottages location was perfect. Out on its own peninsula, we weren't bothered by anyone for the 4 days. Breakfast outside by the water every morning in privacy, midnight walks with the dog in privacy.
The multi-fuel stove was great and there was enough fuel supplied for one full day of burning (9am through to midnight). We brought fuel with us for the other days.
Honestly, I can't recommend this place enough. We will be back. more