Discover marine wonders with a full-day adventure on Lundy Island—snorkel with seals, explore rugged landscapes, and enjoy scenic boat rides from Tenby.
More ways to explore the area's outdoor wonders
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Difficulty
moderate
Duration
8–10 hours
Fitness Level
Participants should be comfortable with outdoor walking and water-based activities.
Wildlife
History
Lundy was used historically for lighthouse keepers and has a rich maritime heritage.
Conservation
Part of a marine reserve, Lundy’s ecosystem is carefully protected through local conservation initiatives.
Celtic Deep
Discover marine wonders with a full-day adventure on Lundy Island—snorkel with seals, explore rugged landscapes, and enjoy scenic boat rides from Tenby.
Celtic Deep is a marine adventure operator based in Dale, Wales, offering guided wildlife and snorkelling trips across Pembrokeshire and the Celtic Deep. The company runs three main experiences: Snorkelling Skomer & Skokholm, Full Day at Lundy Island, and Full Day in the Celtic Deep. Each trip focuses on close encounters with marine wildlife — from seabird colonies and puffins to seals, dolphins, and large pelagic sharks.
Trips operate from local departure points and include boat transfers; the Lundy Island trips depart from Tenby by boat. Snorkelling Skomer & Skokholm visits either Skomer or Skokholm depending on sea and weather conditions, combining shore-side birdlife viewing with guided snorkel sessions using decoys to attract puffins and other sea birds ('snAUKling'). The Full Day at Lundy Island includes snorkeling with seals, island exploration, and lunch at a local tavern. The Full Day in the Celtic Deep travels offshore to approximately 30 miles from shore to seek blue sharks, porbeagle sharks, dolphins, and whale species.
Guides are experienced in marine wildlife watching and operate under standard safety procedures for shore and offshore trips. Equipment, briefings, and local knowledge support responsible wildlife encounters and guest safety. Booking information, trip availability, and detailed itineraries are published by the operator for each listed experience. Celtic Deep presents seasonally scheduled departures tailored to weather and wildlife activity. Trips cater to a range of experience levels, with options for snorkel beginners and experienced divers, and include guidance on conservation practices to minimise disturbance to wildlife and habitats safely.
Base Location
Dale, Wales
Operates from Dale, Wales
Tours Offered
3 trips
Island, snorkel and offshore experiences
Wildlife Focus
Seabirds & Sharks
Bird colonies, seals, dolphins, sharks
Lundy Departures
Tenby boat
Boat transfers from Tenby
Reserve a spot on a small-group snorkel or offshore trip — limited seats per departure.
Book in advance
Secure your boat tickets and restaurant reservations before arriving.
Wear appropriate gear
Bring waterproof clothing and snorkeling equipment for the best experience.
Watch the weather
Check the marine forecast to ensure optimal conditions for water activities.
Respect wildlife
Maintain a safe distance from seals and seabirds to protect local ecosystems.
Snorkel gear
Necessary for spotting marine life in clear waters.
spring;summer;fall
Waterproof clothing
Keeps you comfortable during boat rides and coastal walks.
spring;summer;fall
Sun protection
Protects against sun exposure during outdoor activities.
spring;summer;fall
Camera or smartphone
Capture scenic views and marine encounters.