Lake Sadská: free sand-quarry swimming with a nudist beach and dogs allowed
Lake Sadská is a former sand quarry near Nymburk and Poděbrady. It offers free swimming, a sandy beach with gradual water entry, grassy and shaded banks, a nudist beach, refreshments, seasonal paid parking and dogs allowed.
- Reading time:
- 6 min read
- Verified on:
- 14/05/2026
- Country:
- Czechia
- Region:
- Prague and Central Bohemia

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
- Yes
- Water quality
- The town of Sadská states that water quality is monitored and tested during the summer season. Check current results before swimming.
- Best time
- summer morning, late afternoon
- Avoid if possible
- hot weekend midday
There is a designated or traditionally used nudist section.
Lake Sadská is exactly the kind of place that gives Central Bohemian sand quarries their good reputation. It is not a polished swimming complex with turnstiles and paid loungers. It is a former sand quarry where you can swim for free, lie on sand or grass, find shade under trees and even bring a dog.
It lies near the Elbe between Sadská, Poděbrady and Nymburk, so it works well as a summer escape from Prague or a stop on a trip through the Elbe lowlands.
Why visit
Sadská is a good choice if you want natural swimming without an entry fee. The Sadská side has a sandy beach with gradual entry into the water. There are also grassy beaches, shaded banks and a nudist section.
A big advantage is that dogs are allowed according to the town information. Just be considerate, especially around children and sandy beach areas.
Swimming and atmosphere
The lake was created by sand extraction and has a pleasant sandy character. It is a natural site, not a swimming pool, so check current water quality before visiting in hot weather.
The atmosphere is freer than in paid areas. Families, dog owners, nudists, cyclists and casual swimmers all use the lake.
Practical tip
For a first visit, arrive from Sadská towards the front beach. If you want a quieter spot, walk along the shore towards grassy and shaded sections.
Summary
Lake Sadská is a pleasant Central Bohemian sand quarry with free swimming, sandy beach, nudist area, dogs allowed and simple facilities. It is not luxurious, but that is exactly its charm.
Sources and verification
Sources used to verify prices, opening details, rules, and practical information.
Information verified on: 14/05/2026