Eilean Sionnach Lighthouse Cottage is a very remote, converted keeper's cottage, so assume it is self-catering and basic: bring all groceries, fuel and any special toiletries because the nearest shops will be a considerable drive away. Confirm access with your host before you travel, as arrival may involve a short boat hop or a narrow single-track road and tide times can matter, and expect patchy mobile signal and intermittent Wi-Fi so download maps and entertainment ahead of time. Pack warm, windproof and waterproof layers, sturdy shoes for uneven, slippery ground, and binoculars for bird and seal watching; also be cautious around sea cliffs and changing seas. Book early and get clear check-in and transport instructions so you are not left waiting.