Old Cow Reef

Best months: Aug–Oct

Protected Area

Blanche Beach Conservation Lands

Why dive here

With 77+ marine species recorded in the area - including blue sharks, dwarf minke whales, humpback whales, ocean sunfish (mola mola) and jellyfish lake - Old Cow Reef offers some of Nova Scotia's richest reef diving. Water ranges 1-17°C, warmest August, September, October.

Best timeAug–Oct

WetsuitA 7mm wetsuit with a hood

Marine lifeBlue Sharks, Dwarf Minke Whales, Humpback Whales, Ocean Sunfish (Mola Mola) and Jellyfish Lake · 77+ species recorded

Water1-17°C · warmest August, September, October

CharacterReef dive

StandoutRich in charismatic marine life

Old Cow Reef, off the coast of Nova Scotia, is a solid cold-water dive. Don't expect tropical colours here, but what you will find is a rugged, characterful reef system, well-suited to divers who appreciate the unique beauty of North Atlantic ecosystems. We've often spotted American lobsters tucked into crevices, alongside sculpin and the occasional lumpsucker clinging to the rocks. Keep an eye out for curious common seals, who sometimes make close passes, especially in the shallower sections. It’s a great spot for an immersive, temperate water experience, particularly if you’re keen on seeing the marine life that thrives in these cooler currents.

Safety Notes

Cold water this month (avg 15°C). Drysuit or thick wetsuit (7mm+) recommended.

Today06:2917:4811h 18m daylightGolden hour 17:09

Reviews for Old Cow Reef

Conditions

Ocean conditions, forecast and tides for Old Cow Reef

Old Cow Reef Ocean Conditions

Monthly averages for Old Cow Reef, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (44.6, -63.5) (0km away)