Citarum River
The Citarum River in Indonesia is a great example of a place located in a popular destination spot that should be avoided. The reason is quite clear as the water is highly polluted. The waters have been filled up with so much garbage that the waters have become inhospitable for swimming. Definitely stay away!
![Citarum River](https://static.oceandraw.com/wp-content/uploads/2019/07/04100820/Citarum-River-20190704100820-20190704100820.jpg)
Citarum River
Blue Lagoon
The Blue Lagoon, which can be found in the United Kingdom, is another beautiful body of water that is not swimmer-friendly. The pH level of the lagoon sits at a staggering 11.3, which means it has the same alkalinity level of bleach and ammonia. That’s not exactly what you want to be swimming in. Skip the swim and settle for a photo instead.
![Blue Lagoon](https://static.oceandraw.com/wp-content/uploads/2019/07/04100818/Blue-Lagoon-20190704100818-20190704100818.jpg)
Blue Lagoon