First ban on outdoor bathing

Prague's Hygiene Station publishes information on outdoor areas

The outdoor bathing spot at Šeberák in Prague's Kunratice district has been closed due to cyanobacteria. It is the first closure of this season by the Prague Hygiene Station. The water quality at Šeberák was high last year, though it did show some deterioration after the middle of July.

If the situation improves, the swimming area could reopen this year. The operators have to increase monitoring of the lake and take more samples. Sampling will be done every five to nine days. As long as there is a problem, the operator has to post a sign at the entrance informing the public.

“We have issued a decision on the ban on bathing because cyanobacteria can seriously endanger the health of bathers,” Jan Jarolímek, director of the Prague Hygiene Station, said on the stations website.

Cyanobacteria, which turns water green and used to be called blue-green algae, can cause rashes, red eyes, runny noses and difficulty breathing. It can also lead to bowel problems and headaches. Severe cases can result in liver damage.

Water quality at Hostivař in Prague 10 is poor due to cyanobacteria, but the location has not been closed. The conditions are not as bad as in Šeberák.

The popular bathing spot at Džbán in Prague 6 also has a warning for poor visibility in the water. The warning is less severe than the one for Hostivař. Džbán is located in the Divoká Šárka nature reserve and is one of the city's most popular summer spots.

Excellent water quality has been monitored at the pond at Motol, the pool with natural purification at Radotin and the concrete pool (betonová nádrž) at Divoká Šárka.

“The quality of water in the capital is continually monitored. Sampling is carried out either by the operator of the natural swimming pool itself or directly by Prague hygienists,” Jarolímek said. Swimming areas are monitored from May to September on a monthly or biweekly basis, depending on the conditions. The law says that the swimming area operator must ensure that bathers are not exposed to health risks from water pollution.

The water quality status of outdoor swimming areas is published on the Prague Hygiene Station website using simple color-coded smiley-face emoticons so that even with a limited grasp of the Czech language the status is clear. A blue smiley face is the best. A black frowning face means it is closed for health reasons. In between, there are colored blank-face emoticons, neither smiling or frowning.

For information on the status of outdoor swimming areas, visit (CZ)

Related articles

  • A Day Trip To Some Of The Best Castles by Shaun O'Banion

    The results are in and the most popular Czech castles (based on the number of visitors) have been announced by the Czech state.

  • Five of the Best Trails to Go Hiking in the Czech Republic by Erin Naillon

    Getting away from it all – out of Prague, away from the gridlocked traffic – is a great way to unwind after a hectic week. You can take your car (or the bus, or a train) to somewhere well outside the city and get out in nature. While the good weather lasts, it’s helpful for hikers and would-be hikers to know where they can find trails of varying difficulty to work off the tensions of the week.

  • Swimming in the Vltava River – Every Sunday from 10am by Caroline Marcela

    What better way to treat a Saturday night hangover than swim in the Vltava river on a Prague Sunday morning!

  • Take a Cycling Tour Through the Czech Republic by Erin Naillon

    Those wanting not only to get out into nature, but to experience it outside the confines of a car, have the option of taking a cycle tour from Prague to various destinations, even in other countries. For those intent upon long-distance cycling, the Greenways route runs from Prague to Vienna, with bicycle rental available at various points along the route (Prague, Český Krumlov, Telč, and Mikulov are just four of the cities where cyclists can rent bicycles).

  • The Best Outdoor Skating in Prague! by Shaun O'Banion

  • Celebrity Charity Football Game by Anelya Kadyrova

    A charity football match between Prague Raptors FC and the Supporting Charities Phoenix FC will be held on August 10th in Prague.

  • Send your kids to the Raptors…Football Academy! by Paul Lysek

    The Prague Raptors are starting their own football academy for kids aged 4-7. The first session takes place on August 20th and is completely free.

  • Prague Lions: Czech Bowl Champions by Paul Lysek

    The Prague Lions beat the Ostrava Steelers 29:23 on Saturday to win their first title in over a decade.

  • American Football Czech Bowl! by Micah Lembke

    The Prague Lions defeated the Vysočina Gladiators in the Paddock League Semifinal and earned a spot in Czech Bowl XXVI. 

  • American football: Playoff time! by Micah Lembke

    The Prague Lions have finished the regular season with 9 wins, one loss, and the top seed in the Paddock League semifinals. 

Facebook comments

Ristorante Casa de Carli

Authentic Italian cuisine in Prague

The James Joyce Irish Pub

Best Irish Pub in Prague

Pražské Benátky

Enjoy Prague from a different view

Prague Raptors Football Club

Multi-Cultural, Community Football Club based in Prague

Hugo Bike Prague

HUGO Bike Prague & Segwaytrip

Adventure Minigolf Hotel...

Outdoor Adventure Minigolf

Toboga Prague

Indoor Playground in Prague 5, Zlicin

Prague’s # 1 source for Czech news in English…