There are many reasons for taking the trip through the desert to experience Siwa. One of them is the hot springs. There are many. Some well known and some on the edge of the desert and guaranteed privacy. Some so hot , 45 degrees, you can only stay in for 5 minutes, some perfect and good for half an hour before you need to cool down for ten minutes.
I will add some pictures here and some maps to show you where some of the good ones are, and, will keep some of the best to myself.