Pembrokeshire (Skomer and St Brides Bay)

Yes, but beginners should use a supervised St Brides Bay or similar sheltered training site rather than assume that Skomer's offshore walls and wrecks are suitable. St Brides Haven has shallow, easily oriented water and is used for courses, although wind, swell and post-storm visibility can still make it unsuitable. Most Skomer charters favor divers with recent cold-water, drysuit and DSMB experience. The MV Lucy, North Wall and exposed drift routes demand advanced skills. Tell the operator your true certification, recent dives and drysuit status so the site can be matched to you.

Puffins normally return around mid-April and remain into late July, with May through July the strongest practical window for island landings and guided water-level wildlife trips. Grey seals are present year-round, but pups are most visible from late summer through autumn, broadly August to November. These peaks do not fully overlap, so choose the trip around the priority species. Never enter a pupping cove or approach a mother and pup. Around resting seals, keep roughly 50 m away where practicable and let any in-water encounter remain animal-led.

Book a dedicated local wildlife-snorkel operator, such as Celtic Deep's published Skomer program, and confirm the trip is appropriate for your swimming ability, age and cold-water experience. Puffin-focused departures are concentrated from April through July and have limited capacity. Provide an accurate wetsuit size and ask whether hood, fins, surface support and changing facilities are included. The operator may cancel or relocate for sea state, even in summer. A Skomer island landing is a separate product and should not be assumed to be part of the snorkel booking.

There is no general recreational diver tag or admission charge for entering Skomer Marine Conservation Zone. Access is nevertheless regulated. Divers and boat crews must follow MCZ byelaws, anchoring limits, protected-species rules, scallop controls, vessel-speed restrictions and the Pembrokeshire Marine Code. Landing on Skomer is separate from diving in surrounding water and requires the correct scheduled ticket or private-lander permission. Parking, boat charter, cylinders and island visits are also separate costs. Review the current Natural Resources Wales and Wildlife Trust guidance before travel because temporary measures or procedures can change.

Coastal water is roughly 9°C in late winter and approaches about 16°C in late summer, with daily variation by weather and location. Many scuba divers choose a drysuit with appropriate undersuit, hood and thermal gloves. A well-fitted 7mm suit may work for shorter summer dives if the diver is accustomed to UK conditions. Freedivers and snorkelers generally need a full 5mm to 7mm suit plus a hood. Bring dry windproof layers for the boat, and end the session before shivering or loss of dexterity compromises judgment.

Take rail to Haverfordwest or Milford Haven, then arrange a taxi or use the current seasonal coastal bus timetable toward Marloes and Martin's Haven. Public transport can work for island visitors carrying a day pack, but it is less reliable for divers with cylinders, multiple bags or an early charter check-in. Rural taxi supply is limited, so reserve both outward and return legs and give the driver the exact pickup point. Never rely on a final bus connection after a weather-delayed boat. For a multi-day dive trip, a rental car remains the more resilient option.

Marloes is closest to Martin's Haven and suits travelers prioritizing Skomer boats, island visits and the Deer Park. Dale offers a useful compromise for St Brides Bay access and watersports. Milford Haven and Haverfordwest provide more shops, rail links, fuel, medical access and practical dive logistics, but require a longer early drive to the western launch points. Ask accommodation about wet-kit storage, drying space, parking and early breakfast before booking. A flexible stay of four or five nights is more useful than a short fixed weekend because Atlantic weather can remove a day.

Non-divers can book a Skomer island landing, walk the Deer Park and Wooltack Point, explore Marloes Sands, visit St Davids Cathedral or join a responsible wildlife boat, kayaking or coasteering provider. May to July is best for puffins and breeding auks, while August to November shifts toward seal pups viewed from cliff-top distance. Island boats and exposed activities remain weather-dependent, so keep a cultural or mainland walking option available. A Skomer landing is not included with a dive charter and should be reserved separately through the Wildlife Trust's current booking process.

At sea, call HM Coastguard on VHF Channel 16 or dial 999 and state that the incident is dive-related. Then contact the British Hyperbaric Association National Diving Accident Helpline on 07831 151523 for specialist coordination in England and Wales. Give the highest-concentration oxygen available through a suitable mask, keep the casualty lying down and comfortable, and preserve dive-computer profiles and timing. Withybush Hospital in Haverfordwest has a round-the-clock emergency department, but recompression is coordinated regionally. Do not self-drive a deteriorating casualty or delay the Coastguard call.

It is better approached as a guided wildlife and local-training destination than as an unsupervised depth venue. Skomer has cold water, strong tidal acceleration, vessel traffic and wildlife restrictions, while apparently calm mainland coves can lose visibility or develop chop after a wind change. Use an equally trained buddy with one-up one-down supervision, a bright float and a defined separation from boat routes. Never hyperventilate or dive alone. For Skomer, choose an organized operator-led session. For St Brides Bay practice, confirm the entry and current with a qualified local instructor.