TUTAX has a website. Please visit tutax.com
Airspace waypoints are made by 5 letters words which are relatively easy to pronounce. Tutax is such a word, this is why it was chosen as a waypoint. It is a waypoint over France.
This picture was taken in southern Brazil, this is CX-MGP, a C182 registered in Uruguay. We had a flying adventure in Brazil with this C182. Unfortunately this C182 CX-MGP aircraft crashed on june 28th 2018.
Appart from being on tutax.com, tutax as a waypoint can be seen here on this chart, south of Dijon.
TUTAX is on a departure route from Genève airport going north west, so for exemple to the UK or Canada USA.
Enjoy the flying.
The TUTAX website is simple, yet it follows most recommendations.