During your trip to Paris this summer, I recommend a visit to Versailles during the water shows.
You can go during the day or at night before visiting the castle/gardens.
Also if you would like to wander through the beautiful formal gardens with Baroque music, there is a ticket for “Musical gardens” on Tuesdays. This is valid until 25th October for 7 euros.
I am sure it will make your stay in Versailles even more memorable.