Wadi El-Rayan is known for its integrated desert environment coupled with natural springs, sand dunes, large water bodies, various botanical life, a large variety of flora and fauna and an important area for sea fossils altogether. El-Rayan Lake is characterized by its calm natural environment and pollution-free water.
When visiting Egypt, don't drink the tap water - it's highly chlorinated. ... It's a similar situation in Egypt. It is advisable to drink bottled water during your entire holiday. That is why I would advise strongly that you don't drink the tap water and use it only for washing and brushing your teeth.