you're welcome to shred my backyard if ya want....
Furthermore, in belgium everything is indoor, of wich i can only advice Snowworld landgraaf (just across the dutch border) or take a train to france and shred some alps...
If you're interested in hooking up with some freestylers in belgium, there arent many but this should about cover it... http://www.airborneski.be/http://www.skisluts.be/
If you want to know more, feel fre to pm me or check out the websites, i'm sure they'll respond in english if you cant speak dutch...