Wildlife on the Isles of Scilly

Atlantic Grey Seals

Perhaps the islands' most famous residents are the Atlantic grey seals. Hundreds live around the archipelago throughout the year, making the Isles of Scilly one of the best places in England to see them in the wild.

You'll often spot curious seals lifting their heads above the water to investigate passing boats or swimmers. During autumn, many pups are born on quiet beaches and rocky coves.

Popular places to see seals

• The Eastern Isles
• Around St Martin's
• Near Bryher
• Around Tresco
• Offshore rocks surrounding St Mary's

Visitors should always keep a respectful distance and avoid disturbing resting animals.

Dolphins

Several dolphin species are regularly recorded in the waters surrounding the islands. Common dolphins are the species visitors are most likely to encounter, although bottlenose dolphins occasionally appear too.

Boat trips sometimes experience dolphins swimming alongside the vessel, creating unforgettable moments for passengers. Summer and early autumn often provide excellent opportunities, though sightings can never be guaranteed.

Harbour Porpoises

Harbour porpoises are Britain's smallest cetaceans and are regularly seen around the Isles of Scilly. Unlike dolphins, they tend to surface quietly and are often recognised by their small triangular dorsal fin.

Patient observers may spot them while travelling on the Scillonian ferry or during island boat trips.

Seabirds

The Isles of Scilly are internationally recognised for their birdlife. Throughout the year you may encounter a wide variety of seabirds. Watching northern gannets plunge into the sea from impressive heights is one of nature's great spectacles.

Puffins

Although puffins are often associated with Scotland, small numbers breed on some of the uninhabited islands within the Scilly archipelago. Because colonies are sensitive and numbers vary, the best way to enjoy them responsibly is on a licensed wildlife boat trip that follows local wildlife guidance.

If seeing puffins is high on your wish list, late spring and early summer generally provide the best opportunity.

Rare Migratory Birds

The Isles of Scilly have achieved worldwide recognition among birdwatchers. Every autumn, bird enthusiasts travel from across Europe hoping to spot rare migrant species blown off course across the Atlantic.

Over the years, birds from North America, Siberia and continental Europe have all been recorded here — some of Britain's rarest bird sightings have taken place on these islands.

Marine Life

The surrounding seas are full of life. Rock pools around the islands are miniature ecosystems packed with colourful marine creatures, making them especially popular with families.

Wildflowers

The Isles of Scilly's mild climate allows many plants to flourish. In spring and early summer the islands burst into colour with coastal wildflowers, while sheltered gardens support many exotic and subtropical species. The famous Tresco Abbey Garden showcases thousands of plants from around the world that thrive in the islands' mild climate, where frost is rare but possible.

Common coastal wildflowers