The Siwa oasis is surrounded by salt lakes which nobody really cared about until it turned out that there was money to be made in the salt trade. They recently started to excavate the lakes to get the salt, creating circular pools we got to the chance to swim in. Getting there is a bit of an adventure on itself, you have to walk on the crackling salt ground and then carefully get in the water without scratching yourself on the sharp salt crystals. Once you're floating in the milky blue water it all seem worth it!
___________ Since the water is extremely salty you float ridiculously easily : “Dead Sea style“! If you ever do something like that, I would advise to go there with jelly shoes since the salt will ruin regular shoes, plus you’ll avoid scratching your feets when getting in the water!