As a student of IPParis, you will be able to use the sports facilities of Polytechnique.

To do so, you will have to register to the CSX (https://www.csx-polytechnique.fr/). It is open to all students from IPParis. You have to pay a registration fee (around 30 euros) and then you can register for different activities (that you have to pay for, but we have a “Tarif préférentiel”).
You can find all the information (opening hours, location,…) on the website.

You can also directly contact people from the association to get additional information.