Coll and the Cosmos - October 2025
Saturday 25th October 2025 from 10:00am to Sunday 26th October 2025 22:00pm
Isle of Coll - Coll Bunkhouse
Arinagour, Isle of Coll, Isle of Coll, PA78 6SY
Coll & The Cosmos is a stargazing weekend getaway set on the Isle of Coll — a designated Dark Sky Community and one of the best places in the UK to experience truly dark skies.
This special event is designed for everyone, whether you’re a complete beginner or just curious about the night sky. With no prior astronomy knowledge needed, you’ll be guided through the wonders of the cosmos in a relaxed, fun, and accessible way.
It’s the perfect opportunity to explore the stars in one of the most breathtaking and unspoiled locations in the country.
Event booking
Event darkness
The below chart shows if and when the skies will be at their darkest during this event. Moonlight is shown in light yellow and the Sun's twilight in light blue. Midnight on the date shown is shown as a white line with sunset to the left and sunrise the next morning to the right. A black background with stars shows the best times for stargazing.
Sat 25th Oct
Sun 26th Oct
Local light pollution
Isle of Coll - Coll Bunkhouse is estimated to have light pollution levels similar to adark site dark site location based on the latest data from the VIIRS satellite.
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Urban
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Suburban
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Semi-rural
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Rural
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Dark site
The above demonstrates the estimated effect of light pollution - graphics created using Stellarium.
Forthcoming events
Below is a list of events at Isle of Coll - Coll Bunkhouse. View these events on our calendar, add them to your calendar or Google Calendar.