The article discusses 10 places around the world where it is not safe to swim. These places include:
1. Bubbly Creek in Chicago, which is heavily polluted with animal products and industrial waste.
2. River Yenisai in Russia, which is contaminated with high levels of microbes and chemicals.
3. Horseshoe Lake in California, where earthquakes have released toxic gases that can be deadly to humans.
4. Kippu Falls in Hawaii, where tourists have been injured or killed while jumping into the lake.
5. Fraser Island in Australia, which is home to strong currents, sharks, jellyfish, and crocodiles.
6. Lake Pastore in Western Siberia, where the water is crystal clear but lacks fish and other aquatic life.
7. Blue Lake in Bulgaria, which is considered mystical and has a high concentration of hydrogen sulfide.
8. Mono Lake in California, which is highly saline and toxic due to the diversion of its water sources.
9. Becca Lagoon in Fiji, which is known for its shark infestations and has been the site of several attacks.
10. Blue Holes in various locations, which are underwater sinkholes that can be deadly for divers due to their depth and strong currents.
The article warns readers to avoid these places to prevent accidents and injuries.
Here are the key facts from the text:
1. Bubbly Creek was once a swamp but was turned into a pond as the city of Chicago grew.
2. Industries developed along the Chicago River and poured waste into the water.
3. The waste accumulated at the bottom of the reservoir, mostly animal products, causing the water to bubble.
4. Yenisai River in Russia has high levels of microbes in its water, exceeding permissible standards.
5. The water in the Yenisai River can cause unpleasant diseases if swallowed.
6. Factories pour oil products and chemicals into the Yenisai River, causing health problems.
7. Horseshoe Lake in California has emissions of poisonous gas due to earthquakes.
8. The gas emissions in Horseshoe Lake are unpredictable and can be deadly.
9. Kippu Falls in Hawaii has a high number of accidents due to tourists jumping into the lake from a great height.
10. The Hawaiian tourism department may remove Kippu Falls from guidebooks due to the number of accidents.
11. Fraser Island in Australia has strong currents, sharks, poisonous jellyfish, and marine crocodiles.
12. The island also has venomous spiders and hungry dingoes on land.
13. Lake Pastore in Western Siberia has no fish, and birds don't fly close to it.
14. The water in Lake Pastore has small gas bubbles, but they are harmless.
15. The Blue Lake in Cabardino-Bulgaria has a high content of hydrogen sulfide, making it toxic.
16. The lake has no bottom, according to local legends, and scientists have not been able to find it.
17. Mono Lake in California was drained by the city of Los Angeles, causing environmental disaster.
18. The lake became toxic due to high salt concentration and overflowed with carbonates, chlorides, and sulfates.
19. Becca Lagoon in Fiji is famous for its colorful underwater world but is also a gathering place for large flocks of tiger sharks and bull sharks.
20. There have been shark attacks on humans in Becca Lagoon.
21. Blue Holes are unique water formations that can be found in the world's oceans.
22. Some Blue Holes are not completely forbidden for swimming but have limitations and a bad reputation.
23. The Blue Hole in the Red Sea is known as the "Divers Cemetery" due to numerous accidents.
24. Divers are not allowed to dive deeper than 82 feet in the Blue Hole, and beginners are restricted to 30 feet with an experienced guide.
25. The Blue Hole off the coast of Gozo Island is 200 feet deep and has a maximum visibility of up to 100 feet.
26. Divers can only dive in the Blue Hole off Gozo Island after taking a special course and obtaining a certificate.