Every autumn, one of Britain’s biggest wildlife spectacles plays out on a quiet stretch of the Lincolnshire coast.

Donna Nook is home to one of the UK’s largest colonies of grey seals, and each year thousands of visitors come to watch mothers give birth to their pups just metres from a footpath.

Here’s everything you need to know before you go — where it is, when to visit, and how to make the most of your trip.

Where Is Donna Nook?

Donna Nook sits on the Lincolnshire coast, close to the village of North Somercotes, between Grimsby to the north and Mablethorpe and Skegness further south.

It’s reached via Marsh Lane in North Somercotes, and the nearest postcode for sat navs is LN11 7PD (this is the closest registered address — the reserve itself doesn’t have its own postcode).

Roughly speaking, it’s about a 30-minute drive from Grimsby and Cleethorpes, an hour from Lincoln or Skegness, and 13 miles from Louth.

The final approach follows narrow rural lanes, so it’s worth allowing extra time, especially on a busy weekend — and it’s worth noting there’s no bus or train service, so you’ll need a car.

What Is Donna Nook?

Donna Nook is a National Nature Reserve covering more than 10km (6 miles) of coastline between Grainthorpe Haven and Saltfleet, managed by the Lincolnshire Wildlife Trust.

Unusually, the land is also owned by the Ministry of Defence and used as an active RAF bombing and live-firing range — yes, it’s still operational today, and the seals seem entirely unbothered by it.

Most of the dune area is accessible to visitors at all times, but if you see red flags flying, that means the range is in use and that section is strictly off-limits — always follow the warning signs.

Beyond the seals, the reserve’s dunes, saltmarsh and mudflats support 47 species of breeding bird, making it a popular spot for birdwatchers too.

When Are the Seals at Donna Nook?

Grey seals arrive at Donna Nook to give birth every year, and this is by far the biggest draw for visitors.

• Season: late October to early January
• Peak numbers: late November to early December
• First pups: usually appear from late October / early November
• Busiest weekends (2026): 7–8, 14–15, 21–22, 28–29 November, and 5–6 December

Pups are born with white coats and stay close to their mothers for the first few weeks, before the adults head back out to sea and the last pups gradually disperse through late December.

Numbers vary slightly year to year, so if you’re planning a trip around the peak, it’s worth checking the latest seal count before you travel.

Visiting on a weekday, or early in the morning, means smaller crowds and better light for photos.

Donna Nook Opening Times

Donna Nook is a nature reserve rather than a ticketed attraction, so there’s no set “opening time” — the viewing area is accessible from dawn to dusk year-round.

During the main seal season (late October to December), it’s worth knowing:

• Facilities (toilets, temporary refreshment stall) are only in place during seal season, and close once the light goes
• There’s no need to book — it’s first-come, first-served
• Volunteer wardens are on site daily (roughly 9am–4pm during seal season) and are happy to answer questions
• There’s a small on-site shop in the viewing area during seal season, with card payments accepted — handy for a hot drink or a souvenir
• Outside of pupping season, the reserve is much quieter and still worth a visit for birdwatching and coastal walks

Donna Nook Parking

There are two main car park options during seal season:

• Main field car park: privately operated, £5 per car for the day, includes access to temporary toilets
• Stonebridge car park: free parking, particularly aimed at Blue Badge holders, with a flatter path to the viewing area — follow the yellow signs once you’re close

Traffic wardens are usually on-site during busy weekends to direct vehicles. The lanes around North Somercotes can get congested at peak times.

Near the site, follow the temporary yellow signage rather than relying on sat nav.

Visiting Tips

• Keep to the path: a fence runs alongside the colony to protect both the seals and visitors — adult seals move faster than you’d expect and can give a nasty bite
• Dogs aren’t allowed near the colony: they’re not permitted in the seal viewing area, as seals can carry infections harmful to dogs — but they’re fine on a lead in the car park or the area north of Stonebridge, away from the seals
• Never enter a red-flagged area: these mark the active military range and are strictly off-limits, whatever the reason
• Dress warmly — you’ll likely be standing around outside in a coastal wind
• Bring a zoom lens if you’re photographing — you won’t be able to get right up to the colony, and that’s by design

Is Donna Nook a Seal Sanctuary?

Not quite — and it’s a common mix-up.

Donna Nook is a wild colony, not a rescue centre. There is no hospital or hands-on care involved. The seals simply come ashore, give birth, and head back to sea on their own.

For a closer, hands-on experience with rescued seals, Natureland Seal Sanctuary in Skegness is a great alternative.

It’s only a short drive from our park, and pups are being nursed back to health.

Seal Counts, Pupdates and Live Cameras

The Lincolnshire Wildlife Trust publishes a weekly pupdate through the season. It shows the latest count of pups, cows and bulls on site. This helps gauge whether to time your visit around a particular week.

You can find the latest seal count on the Trust’s website.

If you can’t make it in person, you can use a live webcam overlooking Donna Nook. It’s worth a look before you travel, or if you simply want to check in on the colony from home.

Is Donna Nook Worth Visiting?

In short, yes. It is one of the UK’s few places to view a wild breeding colony up close.

It’s free to visit. The setting—a vast open beach with dunes and North Sea views—is worth the trip, even outside seal season. The main trade-off is the drive.

It’s remote, the lanes are narrow, and weekends in peak season get busy. It rewards a bit of planning around timing.

Combine Your Visit

Donna Nook makes a great full-day trip out from the Skegness area, especially if you break up the drive.

Many visitors pair it with a stop in Mablethorpe during the journey. They also explore Lincolnshire’s other family-friendly coastal days out.

For more on the seals and the wider reserve, see the Visit Lincolnshire Donna Nook page. It is a useful additional resource.

Planning Your Trip

Donna Nook makes an easy day trip for those staying on the Lincolnshire coast. It is about an hour’s drive from Skegness and Ingoldmells.

If you’re looking for somewhere to base yourself for a longer stay. Our static caravans at Kingfisher put you within easy reach of Donna Nook and the rest of the coast.