Natural swimmingFeatured

Lake Konětopy: a clear sand-quarry lake between Prague, Brandýs and Mělník

Lake Konětopy is a popular flooded sand quarry between Konětopy and Dřísy, with clear water, sandy and grassy beaches, refreshments, toilets, a playground, fishing and a paid area regime without dogs.

Reading time:
6 min read
Verified on:
14/05/2026
Country:
Czechia
Region:
Prague and Central Bohemia
Flooded sand quarry lake Konětopy between Konětopy and Dřísy
Photo: Konětopy, jezero Las Vegas 2021 01.jpg by Hubert Kororo, CC BY-SA 4.0, via Wikimedia Commons, CC BY-SA 4.0, Wikimedia Commons

Quick overview

Place type
natural swimming
Recommended stay
1–5 hours
Crowds
high in hot weather
Opening hours
Check before visiting according to the current season and operator.
Booking recommended
No
Tickets online only
No
Nudist beach
No
Water quality
Konětopy is a natural sand-quarry lake. The water has a good reputation, but check current water quality before swimming, especially in hot summer.
Best time
summer morning, late afternoon
Avoid if possible
hot weekend midday

Lake Konětopy is a well-known sand-quarry swimming spot within reach of Prague. It lies between Konětopy and Dřísy, close to Stará Boleslav, Lhota and the Elbe lowlands.

This is not a completely wild free-access lake. The area is partly fenced and has admission, opening hours, toilets, refreshments and parking. Compared with Sadská, it feels more organized; compared with Lhota, it can feel calmer and less like a large-scale summer resort.

Why visit

The main reason is the water. Konětopy has a reputation for clean swimming, sandy and grassy beaches and a simple natural-swimming atmosphere.

It suits families, swimmers and visitors who want a natural lake but do not want to improvise at a completely free shore.

Swimming and atmosphere

Konětopy is a sand-quarry lake, not a city pool. Expect natural water, simple services and a summer beach atmosphere. Hot weekends can be busy, so mornings, weekdays and late afternoons are better.

Dogs, fishing and services

Dogs are not allowed in the area, which is important to know before going. Fishing is also part of the site’s use, with permits handled by the operator.

Practical tip

For a first visit, driving is easiest. Prices differ between available sources, so check the current operator price list or ask at the ticket office.

Summary

Lake Konětopy is a solid natural-swimming choice near Prague: clean water, sandy and grassy beaches, basic facilities and a calmer character than some better-known sites.

Sources and verification

Sources used to verify prices, opening details, rules, and practical information.

Information verified on: 14/05/2026