Where in France is good to go snowboarding in April?

Hey,
I would like some advice please on where you would recommend to go boarding in April.. I am looking to go to France... I am a teacher so therefore can only go away in the holidays. Didn't have time to go in Feb half term so now have to wait until April 2nd. I am worried that, as is end of season, the conditions won't be as good so will be looking to go higher up!

Can you please give me any suggestions! I went to Austria last year which was AMAZING!!

Thanks guys