12/17/2025
🇨🇦 DIVER FEATURE | OISIN DEERY
Cold Water • Wrecks • Exploration
Some divers chase warm water. Others chase history, challenge, and dives that demand planning, precision, and grit.
Today we’re proud to feature Oisin Deery — a diver whose journey spans Ireland, Australia, and Canada, and whose passion for cold-water wreck diving runs deep. 🌊⚓️
Oisin’s connection to the water began growing up in Ireland in the 1980s — open-water swimming races, sailing, boating, and endless time in the sea. The dream of scuba diving started early, but it wasn’t until 2018, while living in Melbourne, Australia, that he finally tried diving. One dive was all it took.
After moving to Toronto, Oisin and his wife Katherine committed to making diving a permanent part of their lives. Since then, his experience has grown into serious technical territory, with hundreds of wreck dives and decompression dives completed. He’s trained across multiple technical agencies, is a PADI Divemaster, has worked as one in Tobermory, and is also a cave diver.
📸 Photography has been part of Oisin’s life since the mid-1980s, starting with manual SLR cameras. While diving gear has taken priority, he embraces the creative challenge of shooting exclusively on a GoPro Hero 12, proving that vision matters more than gear.
⚓️ Standout dives include:
• Historic Great Lakes wrecks discovered only in 2018
• A true expedition scooter dive in 7°C / 47°F water, lasting 3 hours and 14 minutes
• Long exploratory dives through coral caves on a remote seamount in the Coral Sea
🧊 Advice for new cold-water divers:
Get good gear. Cold in Canada is different. Invest in proper exposure protection, real cold-water regulators, and build experience slowly. These environments are incredible — but they demand respect.
👇 Follow Oisin’s work:
📸 .diving.photography
💬 Would you dive Canadian cold water?
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