There is another trampoline park by the harbour, they also have a little train that carries the littluns and serve tea/coffee etc., to the parents. There are also lots of parks along the harbour area, which are fine for the younger children and the setting is nice for the adults as well.
Swimming in the Summer is a favourite and there are lots of accessible beaches to choose from, each with it's own character, not to mention, but, I will, fan club.