Cardigan Bay Dolphins
Britain's largest resident bottlenose dolphin population, watched from harbour walls at New Quay and from boats out of three ports.
Updated 4 September 2026

AI illustration
Cardigan Bay holds around two hundred and fifty resident bottlenose dolphins, the largest semi-resident population in Britain and one of only two in the country, protected by two special areas of conservation covering most of the bay. New Quay is the unusual part: the dolphins come inside the harbour and close to the pier regularly, so they can be watched from the harbour wall without a boat, which is rare anywhere. The Cardigan Bay Marine Wildlife Centre on the harbour runs monitoring and posts recent sighting records. Boat operators work under an accreditation code that sets distances and prohibits chasing. Harbour porpoise, Atlantic grey seals and, less often, sunfish and minke whales are also seen. Sightings are best in calm conditions with little swell.
What you'll find
- The resident bottlenoses - around two hundred and fifty in the bay.
- The harbour wall watching - dolphins inside New Quay harbour, seen from land.
- The grey seals - hauled out along the cliffs and in coves.
- The accredited operators - boats working to a code that sets approach distances.
When to go
April to September, with July and August the peak for numbers and calves; calm mornings with flat water give by far the best chance. Winter sightings occur but boat trips largely stop.
Practical notes
Dolphins are wild and sightings are never guaranteed, though rates are high in summer; operators do not usually refund a blank trip. Swell makes both spotting and the trip itself unpleasant. Swimming with or approaching the dolphins is prohibited.
Nearby
New Quay and Aberaeron are on the same coast; the Ceredigion coast path links them.
What to pack for Cardigan Bay Dolphins
Chosen from what this place is for. Tap a kit for the full checklist.
- Broken-in walking shoes or boots - Grip and ankle support matter more than looks; never hike in brand-new boots. Find on Amazon
- Reef-safe sunscreen - High SPF that will not bleach the coral you are swimming over. Find on Amazon
- Binoculars - The single best wildlife tool - even a compact pair transforms a sighting. Find on Amazon
- Layers + a waterproof shell - Mountain weather turns fast; a packable rain jacket saves the day. Find on Amazon
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Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.


