The seasonal clock of the UK coast

Britain’s coastline is never the same twice. The animals you hope to see are governed by tides, daylight and breeding cycles that shift through the year. Seals and puffins sit at opposite ends of the calendar: seals are here all year, but their behaviour changes dramatically between pupping, moulting and resting at sea; puffins are true summer visitors, arriving in spring and leaving by late summer. Knowing these rhythms is the single best way to plan a responsible and rewarding trip. It also means you will not turn up expecting puffins in December or seal pups in June.

Where to watch seals without causing stress

Grey seals and common (harbour) seals both haul out on rocky shores, sandbanks and secluded beaches around the UK. The best places to watch them are often those with a designated viewing area, a cliff path or a boat trip that keeps a respectful distance. In England, the Lincolnshire coast and the Farne Islands are famous for grey seals, while the Wash and the Moray Firth in Scotland hold important common seal populations. Wales has colonies on Skomer, Ramsey and the Pembrokeshire coast, and Northern Ireland’s Strangford Lough is a stronghold. Orkney and Shetland offer some of the most accessible haul-outs in the north.

Timing matters. Grey seals usually give birth between October and December, with a peak in November. Common seals pup in June and July, often on sandbanks that are exposed at low tide. Outside these periods, you can still see seals resting on rocks or “bottling” in the water, but the pupping season demands extra care. A mother disturbed by people may abandon her pup, and pups cannot survive without her. Keep at least 100 metres away — 200 metres if you spot a white-coated pup — and use binoculars or a zoom lens rather than moving closer.

Where to find puffins in summer

Atlantic puffins return to UK cliffs and islands from late March, peaking in numbers between May and July. They nest in burrows on grassy slopes and clifftops, often in colonies that are best viewed from a safe path or a boat. Standout spots include Skomer in Pembrokeshire, the Farne Islands off Northumberland, Bempton Cliffs in Yorkshire, the Isle of May in Fife, and the dramatic seabird cities of Orkney and Shetland. Lundy in the Bristol Channel and Rathlin Island in Northern Ireland also host colonies.

Puffins are most active early in the morning and late in the evening, when they return from fishing with sand eels dangling from their beaks. Midday often sees them resting at sea or inside burrows. They are curious birds, but that does not mean you should crowd them. Stay on marked paths, keep low, and never block a burrow entrance. A sudden movement or a dog off the lead can cause panic across a whole colony.

Responsible viewing: distance, dogs and disturbance

Wildlife watching is a privilege, and the UK has clear codes of conduct that are easy to follow. The golden rule is simple: if an animal changes its behaviour because of you, you are too close. For seals, that means backing away if they lift their heads, shuffle towards the water or rush into the sea. For puffins, it means keeping a couple of metres from burrows and never using a flash. Binoculars or a telephoto lens give you a far better view than a phone camera ever will.

• Keep your distance: at least 100 m from seals, 200 m if pups are present. For puffins, stay on paths and at least 2 m from burrows.
• Control dogs: keep them on a short lead near colonies and haul-outs, or leave them at home.
• Never feed or touch: handouts make wild animals dependent and aggressive. Touching a pup can cause its mother to reject it.
• Use quiet boats: choose operators who slow down, avoid cutting between a mother and pup, and do not chase rafts of puffins.
• Take litter home: balloon releases, fishing line and plastic bags kill seals and seabirds.

Practical tips for planning your coastal trip

Check tide times before you set out — many seal haul-outs are only visible at low tide, and coastal paths can become cut off. Wear sturdy shoes, pack waterproofs and bring binoculars. A spotting scope is useful on cliffs but not essential. If you are taking a boat trip, ask whether the operator follows the national wildlife watching code; most responsible ones will happily explain their approach.

The best months for puffins are May, June and early July. For seal pups, aim for November (grey seals) or June to July (common seals). Outside these windows you can still enjoy seals hauled out on rocks, but expect fewer puffins after August. Shoulder seasons — April and September — are quieter and often blessed with calm weather. Always respect local signage and ask at visitor centres for the latest advice. With a little patience and a lot of respect, you will come away with memories of these extraordinary animals without ever disturbing them.