Lundy Island

Best months: Jul–Sep

Protected Area

Lundy

Why dive here

With 176+ marine species recorded in the area - including blue sharks, dolphins, dwarf minke whales, humpback whales and ocean sunfish (mola mola) - Lundy Island offers some of Cornwall & Devon's richest diving. Water ranges 10-18°C, warmest July, August, September.

Best timeJul–Sep

WetsuitA 5mm wetsuit

Marine lifeBlue Sharks, Dolphins, Dwarf Minke Whales, Humpback Whales and Ocean Sunfish (Mola Mola) · 176+ species recorded

Water10-18°C · warmest July, August, September

Charactermax 5-30m

StandoutExceptional marine biodiversity

Lundy Island, England's only marine nature reserve, definitely earns its ‘standout’ tier. We’re not usually ones for hyperbole, but this place is genuinely special. What you’ll experience here is a raw, untamed slice of British diving. Think dramatic granite cliffs plunging into the Atlantic, a real sense of wildness that you don't always get elsewhere in the UK. The famous seals are, of course, a huge draw and always a highlight. They’re inquisitive, playful, and unafraid to come right up to your mask. But Lundy offers so much more. We love the intricate rock formations, covered in jewel anemones and dulse, creating explosions of colour against the grey stone. Keep an eye out for conger eels lurking in crevices and common spiny lobsters scuttling across the seabed. The visibility can be variable, but on a good day, it’s surprisingly clear, allowing you to appreciate the sheer scale of the underwater topography. This is a dive for those who appreciate temperate waters, keen-eyed macro hunters, and anyone who enjoys interacting with curious marine life. It’s certainly not a tropical reef, but Lundy has a wild beauty all its own.