Wreck of Sir Colin

Protected Area

Bridgend Flats, Islay

Why dive here

With 112+ marine species recorded in the area - including blue whales, dolphins, dwarf minke whales, humpback whales and ocean sunfish (mola mola) - Wreck of Sir Colin offers some of Scottish West Coast's richest wreck diving.

Marine lifeBlue Whales, Dolphins, Dwarf Minke Whales, Humpback Whales and Ocean Sunfish (Mola Mola) · 112+ species recorded

CharacterWreck dive

StandoutRich in charismatic marine life

The Sir Colin wreck, tucked away in the often-overlooked Scottish West Coast, is one of our favourite cold-water dives. It’s a proper dive for wreck lovers, a substantial trawler lying in around 20 metres. We love the way she sits upright, almost like she just moored up, making for some fantastic penetration opportunities for those with the right training. You can duck into the wheelhouse, explore the engine room, or poke around the accommodation blocks, imagining the crew's last moments. Visibility here can swing from a glorious 15 metres to a murky 5, so picking your day is key. Slack water on a neap tide is always our preference. Even in lower visibility, the sheer size of the wreck means you’re never short of something to investigate. Expect to see wolfish peeking from under plates, conger eels coiled in the tighter spaces, and some impressive plumose anemones carpeting the deeper sections. The Sir Colin is a solid dive for advanced divers comfortable in low temperatures and overhead environments. She’s certainly earned her standout status in our books.