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ParkSchleswig-Holstein, Germany

Naturpark Schlei

Come for waterside walks where you can watch birds, explore a nature centre and see how the Baltic has shaped the land.

About

Come for waterside walks where you can watch birds, explore a nature centre and see how the Baltic has shaped the land. For a first family outing, start at Exhöft near Maasholm and follow the learning trail to the NaturErlebnisZentrum. Give the journey some time: the centre is reached on foot or by bicycle, and the walk back is part of the day.

The Schlei reaches about 42 km inland from the Baltic towards Schleswig. Glaciers and meltwater helped form its winding channel; freshwater and seawater now meet along a succession of broad bays, narrow passages and sheltered side waters called Noore. Around them lie villages, fields, hedgerows and woodland. This is a whole region to explore in manageable pieces, with separate starting points and facilities.

Maasholm is a good place to compare sheltered water with the open sea. The public coastal path passes the Hegeberg viewpoint and follows the edge of the Schleimündung reserve towards the Baltic. Watch the grassland as carefully as the water. Lapwings use the meadows, while visiting geese and ducks make the scene change through the year. The protected spit beyond the public route needs a guided visit; it is not a walking shortcut to the lighthouse.

For a quieter, observation-led outing, choose Reesholm near Füsing. Its low, salt-influenced meadows sit beside drier grassland, with a permitted path to a viewing hut. Galloway cattle help keep the vegetation open. They are managed grazing animals, while the birds are wild. Settle down with binoculars and let the scene come to you rather than trying to walk around the peninsula.

Near Schleswig, the Haddebyer and Selker Noore combine water views with the landscape of Haithabu. The full two-Noor circuit is a proper half-day walk. You can make the Viking museum the main event on another day, or add it only if everyone still has the energy and its opening arrangements fit. Be ready to snap and learn! Get the Snappit app to identify any nature species you find here.

The Naturpark Schlei association has brought local communities together since 2008. Much older journeys are visible at Haithabu, the Viking trading settlement beside the Haddebyer Noor; Haithabu and the Danewerk received UNESCO World Heritage recognition in 2018. At the other end of the Schlei, the present sea entrance was cut in 1780 to maintain navigation. The old opening gradually filled, eventually linking the former Lotseninsel to the northern spit. These changing shores help explain why a modern map and the public-access signs matter. Maasholm’s nature centre has its own change of purpose: it occupies a former missile-station site.

What to do here

For the nature centre, walk 2 km from the Exhöft walking car park to the NEZ and return along the same path: 4 km altogether, before exploring the grounds. Look at the learning stops, then try the centre’s self-led rally. Exhibitions normally run from April through October; the grounds are accessible year-round.

For birdwatching by the sea, use the separate 5.2 km return walk from the car park at Maasholm’s village entrance, following the shore past Hegeberg to the Baltic beach near the Jordsand bird station. The return is included. A visit into the reserve with a warden adds walking and about 1.5 hours; a detour to the NEZ is also extra.

For a longer outing, follow the 10.22 km Rund ums Haddebyer und Selker Noor circuit from the bathing-area parking in Niederselk, on Plettenberg. It returns to the same starting area, using waterside and woodland paths past the Haithabu landscape. Follow the official route download; museum interiors and optional detours are extra.

At Reesholm, begin at Winningmay parking and use only the permitted path to the viewing hut, returning the same way. Stop at any earlier barrier. There is no public circuit around the reserve.

Seasonal info

Check wind and water conditions before an exposed coastal walk. Reesholm’s approach can become very muddy in the winter half-year; turn back at flooded ground or closures. The NEZ exhibitions and Jordsand programme change with the season. Haithabu’s exhibition building and reconstructed-house grounds have separate seasonal arrangements, so confirm both before promising a visit.

Accessibility

Reesholm’s muddy natural path is a poor choice for small wheels after rain. The Noor circuit includes unpaved ground and is a long outing. The Exhöft approach is a shared walking-and-cycle path, but that alone does not establish wheelchair or pushchair suitability: ask the NEZ about surfaces, gradients, gates and accessible toilets for your needs. Do the same for the coastal path and viewing facilities. None of these complete outdoor routes is presented here as certified barrier-free.

Don't miss

1

The Exhöft learning trail and NaturErlebnisZentrum Maasholm

2

Hegeberg views across meadows, shallow water and the Schleimündung reserve

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Patient birdwatching from Reesholm’s permitted viewing point

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The two-Noor walk through the landscape around Viking Haithabu

Walks and routes

Exhöft to the NaturErlebnisZentrum and back

Follow the nature-learning approach to the centre, leave time to explore, then retrace your steps. This is the most focused centre-based family plan.

Ask the NEZ about the whole approach and facilities if using a wheelchair or pushchair. Do not infer suitability from bicycle access.

Exhöft to the NaturErlebnisZentrum and back

Maasholm to the Baltic birdwatching point and back

Follow the dam-side path past Hegeberg, watching the grassland and shallow water, then continue beside the reserve to the Baltic shore near the bird station.

Wind exposure and the full return distance matter. Confirm current surfaces and access to any viewing platform before a wheeled visit.

Maasholm to the Baltic birdwatching point and back

Rund ums Haddebyer und Selker Noor

Circle both Noore through alternating waterside and wooded stretches, with views towards the Haithabu landscape. Save the route before leaving.

Treat this as a walking route rather than a verified wheelchair circuit. A shorter visit to Haithabu needs its own access plan.

Rund ums Haddebyer und Selker Noor

Winningmay to the Reesholm viewing hut and back

Make this a patient viewing visit. Scan the lagoon and meadow from the designated endpoint, then return along the permitted path.

Ask about current ground conditions and the viewing-hut access before bringing a mobility aid. A short-looking spur can still be difficult in mud.

Winningmay to the Reesholm viewing hut and back

A centre-led half-day

Choose the Exhöft return walk, pause at the learning stops and make the NEZ your main destination. Eat before beginning the return. Skip the longer coast route if the outward approach has already used most of the family’s energy.

A birdwatching coast day

Take the 5.2 km Maasholm return walk slowly. If a Jordsand tour fits your group, work backwards from its start time and leave enough time to reach the bird station. Add the tour’s 1.5 hours and extra walking to your day; it is not included in the public-route estimate.

A longer inland walk

Choose the full two-Noor circuit for walkers comfortable with about 10 km. Carry a picnic and decide before leaving whether Haithabu will be a brief landscape stop or a separate museum visit. Trying to fit both a substantial museum visit and every detour into a short afternoon makes the return unnecessarily rushed.

Things to try

Make the walk a small field notebook

On the Exhöft learning trail, let each person choose one question to take to the NEZ. A drawing of a shoreline, a reed or a bird shape is enough. Compare what you noticed afterwards rather than trying to identify everything immediately.

Try the NEZ rally

The self-led rally gives the centre visit a little structure. Other activities run at set times, so check the programme rather than expecting a workshop to start whenever you arrive. Give younger children a snack break before the walk back.

Use the app as an optional companion

The nature park’s digital theme paths explore water at Ulsnis, riverbank life at Fleckeby and change around Maasholm. Download the relevant content ahead of time. These are separate themed outings; an app route is not automatically the same as the 4 km or 5.2 km plans here.

Compare two bird silhouettes

At Reesholm, choose a large swimming bird and a smaller bird on the margin. Notice the bill, neck and way of moving before looking up names. Stay at the legal viewpoint even if the birds are too distant for a detailed photograph.

Haithabu’s exhibition building

For a wet day near Schleswig, make the museum’s indoor displays the main destination. The outdoor houses require a separate walk and have seasonal access. Check the current opening page, including winter Mondays and holiday exceptions, before setting out.

Indoor learning after an outdoor approach

The NEZ has indoor exhibitions during its operating season, but there is still the Exhöft walk to reach them. It suits light, manageable rain better than a plan for escaping a storm. Postpone an exposed outing when conditions make the return uncomfortable or unsafe.

Wildlife and habitats

In spring, watch the meadows from the public path for broad, rounded wings and a bird tumbling through the air. At rest, the thin head crest is a useful clue. Keep watching from a distance; walking into the field would disturb the very habitat you came to enjoy.

The bold black-and-white body and long orange-red bill make an oystercatcher a good first identification challenge. Look across open shore or short grass from a permitted viewpoint. If it is calling repeatedly at you, move away rather than seeking a closer picture.

Scan the margins for a mostly white duck with a dark head and chestnut chest band. Compare its size and colour blocks with nearby ducks through binoculars. Reesholm provides breeding habitat, but nests are hidden and should never be searched for.

Look for a white face framed by a black head and neck. Spring passage is a good reason to scan the Maasholm grassland; Reesholm also receives migrating flocks. Watch from the path and leave feeding birds space to remain settled.

In the colder months, look for yellow-and-black bills among the swans and listen for carrying calls. A telescope helps when birds are far out. Do not confuse every white swan with this winter visitor or use food to draw one closer.

Lift your eyes from the water occasionally. A white-tailed eagle has very broad wings; an adult’s pale tail can help confirm the identification. The reserves are feeding areas, so a passing bird is possible, but no walk should depend on one appearing. Never seek out nests.

From the viewing hut, scan exposed mud for small waders probing with slightly downcurved bills. Dunlin change appearance through the year: the black breeding-season belly gives way to plainer winter colours. Take a photograph through your optics if possible and compare it later, without approaching the shore.

This butterfly belongs to Reesholm’s restoration story: it was reintroduced, and its habitat is actively managed. Treat it as a conservation-interest species rather than an easy target on the public path. Enjoy any chance view from permitted ground; never enter fenced grassland or search for caterpillar webs.

Sheltered water with a salty influence

Noore are sheltered side waters associated with the Schlei. Reeds and shallow edges give a very different feel from the open Baltic shore. On a walk, compare where the water is sheltered and where wind reaches it; there is no need to enter the reedbeds to notice the contrast.

A grazing landscape at Reesholm

The reserve combines low, salt-influenced wet ground with higher, poorer soils. Conservation grazing keeps a changing mixture of short and taller vegetation. The Galloways are working livestock: give them space, keep gates as found and never feed them.

A shore still being reshaped

At Schleimündung, sand movement builds and erodes spits and beach ridges. Strong winds can expose shallow flats that birds use for feeding. The view may change between visits, which is one reason to stay on the permitted route rather than following footprints across exposed ground.

Stories and discoveries

The sea entrance has a human history

The present opening of the Schlei was created in 1780 for shipping. The old entrance later silted up. Looking across the mouth today brings engineering history and a constantly moving coastline into the same view.

A military site became a learning place

The municipality took over the former missile-station grounds near Maasholm in the 1990s and developed today’s nature centre there. It is an interesting change to discuss while walking between the outdoor learning areas.

A butterfly returned with help

Reesholm’s marsh fritillary is a managed reintroduction. Protecting its grassland and food plants remains part of the work. The restoration story is worth knowing even when no butterfly is visible from the public path.

When to visit

Keep a different plan for each season

Spring and autumn favour migration watching; winter can be excellent for waterbirds if the approach is usable and everyone is warm enough. Jordsand changes from its April–October programme to fewer winter tours that require booking. Give the official calendar priority over a remembered time. In summer, plan pauses and drinking water for exposed paths.

Getting there and practical advice

Use centres and villages for facilities

The NEZ provides exhibitions and outdoor learning space, with seasonal indoor opening. Niederselk’s bathing area has limited parking and toilets, but no catering directly at the beach; confirm seasonal availability. Carry what you need for the walk, and do not rely on facilities at a remote birdwatching point.

Plan the last leg, then the journey home

Schleswig, Süderbrarup and Rieseby are useful rail gateways for different parts of the region. For Maasholm, check the current planner for Exhöft or Schmiedestraße and any onward walk. In 2026, line 625 is schoolday-only; line 695 around Selk is also restricted to school traffic. NAHSHUTTLE may provide the local connection, but availability and the return must be checked and booked where required. Bus-stop approaches are additional to every walking total. Use Schleiampel for cross-water road or cycle connections.

Match the plan to the whole journey

Ask about the approach, entrance, toilets, resting places and return transport together. A bicycle route or a family label does not tell you whether a gate, surface or viewing platform suits your mobility aid. Reesholm’s mud and the long unpaved Noor route deserve particular caution. If a full outdoor walk will not work, ask the NEZ or Haithabu about a visit tailored to your requirements before travelling.

Sources and useful links

Wildlife you might spot

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Good to know before you go

Choose your start

Exhöft, Maasholm village entrance, Winningmay and Niederselk are different starting points. A general nature-park pin will not plan your day for you.

Check rural transport

In 2026, bus 625 between Kappeln and Maasholm is limited to school traffic, and the former 609 Naturparklinie has been withdrawn. Use the current NAH.SH planner and check whether an advance-booked NAHSHUTTLE ride is needed, including the return.

Keep the return in reserve

The coast can feel very different walking back into the wind. Carry water, food and another layer, even if the outward walk feels easy.

Bring binoculars

Wide views are the point here. Use a distant photograph or a sketch rather than moving closer to feeding birds or searching for nests.

Respect the boundaries

Stay on the permitted Reesholm path and keep dogs leashed there. At Schleimündung, enter protected areas only through the authorised guided arrangements; never bypass a sign or fence.

Plan the indoor stop

NEZ entry is free, with donations welcomed; guided activities can have separate arrangements. Haithabu is a separate ticketed museum. Neither replaces checking seasonal opening.

Look up crossings

If driving or cycling between shores, check the regional Schleiampel before setting off. None of the featured walks requires a Schlei ferry crossing.

Frequently asked questions

The Exhöft–NEZ out-and-back has a clear destination and 4 km of approach-and-return walking. Add time and distance within the centre grounds. If that is too far for your group, choose a shorter public waterside stroll and turn back early, counting the return.
Do not plan that as an independent walk. The public route reaches the Baltic near the bird station; protected sections of the spit are closed to general access. Ask Jordsand about an authorised guided visit. A boat excursion to the Lotseninsel has separate transport arrangements.
The Galloways are managed livestock used for conservation grazing. The marsh fritillary at Reesholm is part of a managed reintroduction, not a guaranteed walk-by sighting. The listed birds are wild. Keep your distance from all of them.
Keep dogs leashed on Reesholm’s permitted path. Haithabu allows leashed dogs on the public Noor footpath, but pets are not admitted to its exhibition building or reconstructed-house grounds. Check the rules for any additional centre, guided tour or beach before going.
Near Schleswig, make Haithabu’s indoor exhibition the main visit if it is open. The NEZ also has exhibitions in its operating season, but reaching them still involves a 2 km walk each way from Exhöft. In strong wind or flooding, postpone the exposed walk.

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