Travel and freetime in Belgium ...

There are lots of great places to visit in Belgium. You can research which ones you would like to visit the most:

Gent, Belgium - http://www.trabel.com/gent.htm and http://www.visitflanders.co.uk/go/destinations/ghent-intro.html
Brugge, Belgium - http://www.brugge.be/internet/en/index.htm
Antwerp, Belgium - http://www.trabel.com/antwerp.htm
Diksmude, Belgium - http://www.trabel.com/diksmuide/diksmuide.htm
Brussels, Belgium - http://www.visitbelgium.com/
Oostende, Belgium - http://www.trabel.com/oostende.htm
Spa, Belgium - http://www.trabel.com/spa/spa.htm

There are also lots of great beer breweries you can visit including:

Stella, Palm, Westmalle, Orval, Brugese Zot

For a complete list see: http://www.visitbelgium.com/beer.htm#breweries

From Belgium you also have plenty of great cities less than three hours away to be able to visit.

Paris - http://en.parisinfo.com/
Amsterdam - http://www.amsterdamtourist.nl/en/visiting
London - http://www.visitlondon.com/
Berlin - http://www.visitberlin.de/index.en.php

If a longer trip isn’t for you there are many things you can do in your free time.

Movies - Kinepolis is the largest theater chain in Belgium, but there are many local theaters in the area you can also try. - http://www.kinepolis.com/be-nl/
Bars/Cafes - Many great little bars and cafes where you can sit down and enjoy a coffee or a beer.
Beach - The beach is usually only a quick train ride away and you can enjoy a day in the sun and relax. The most common places to visit are Oostende, Blankenberge, Knokke and De Panne.
Restaurants - Plenty of great places to sample in Belgium and if there is a type of food you want there is a restaurant for it.
Festivals - There several to choose from: Gentse Feesten, Pop Rock, and Rock Wechtwer - http://www.2camels.com/festivals/belgium.php