There is loads of things to do in HKG with kids. Ocean Park and Disneyland are our usual haunts as are
* The zoo in Hong Kong Park which is free. it is at the top of the park past the playground.
* The science museum in TST is very hands on with a soft play for the younger ones on the top floor. Wednesdays are free entry but very busy.
* Junk boat ride around the harbour. The Tourist office sells tickets for HKD $50. You will need to show a foreign passport to book
* HK Central Library in Causeway Bay runs a free toy library on the second floor. You have to call to book