Lake

Ternscher See/Waldfreibad

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About

Explore this spot near Selm. Great location for swimming and paddling. Selm is a small city located in the district of Unna, in the region of Arnsberg, in the state of Nordrhein-Westfalen in Germany. The area is characterized by forested hills, meadows, and farmland with winding rivers and streams flowing throughout. The region is known for its natural beauty and provides ample opportunities for outdoor activities such as hiking, cycling, and fishing. Selm itself is a quaint town with a historic city center and a variety of restaurants, shops, and cultural attractions. Nearby attractions include the Haltern am See, a large lake with beaches and water sports, as well as the Arnsberg Forest Nature Reserve, which features extensive hiking trails and wildlife viewing opportunities.

Location

What swimmers say

Activities

Picnic Swimming

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Plan your swim

Before you go

Cold water shock is real. Enter slowly and control your breathing.
Lake water can be much colder below the surface (thermocline)
Stay close to shore until you know the conditions
Watch for boat traffic and stay visible with a tow float
Check for blue-green algae warnings before swimming

Conditions change fast. Always check the latest data, read recent community reports, and swim within your ability.

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Frequently asked questions

Is this lake safe for swimming?

Check the Conditions tab for surface state and wind conditions. Review the Quality tab if this is a designated bathing water. Always read recent community reports for local advice.

How cold is the water?

Check the Temperature tab for the current estimate and 7-day trend. Lakes hold heat longer than rivers but can develop a thermocline. The water below the surface can be dramatically colder.

What should I bring?

A tow float for visibility (especially important where boats operate), warm layers for after, and consider a wetsuit in colder months. Check for designated swimming areas.