Looking for suggestions for things to do in Bangkok with my 9 yr old boy during the school holidays.......

Already been to Dusit Zoo, Siam Park, Dream World, Ocean World

Go Karting - easykart.net bowling / movies - take to a driving range and hit some balls or go golfing, Ice skating? there is a skateboard place on Sathorn, a trip up the river? go rent a bicycle or take a tour on one (google it).

Ice Skating in Central World up until Mid Jan too..

Go the the library

Read a book with him

Why does it always have to be fun things?

Have you checked out safari world?

Go the the library

Read a book with him

Why does it always have to be fun things?

True enough I suppose: why not get a model and put it together with

You can try

1. Safari World

2. Children Discovery Museum (NearChatuchak Market)

3. TK Park (CentralWorld)

4. Bangkok Planetarium

5. ScienceMuseum

6. Museum Siam

7. Madame TussaudsBangkok (Siam Discovery)

8. Wachirabenchatat Parkor Rod Fai Park a.k.a. Railway Park

There're still so many places to visit. ^^