Just signed my kids up for Tuesdays at the May Center - any age group can go, classes are only $2 per child suggested donation. Everything from science to theatre.
See May Copmmunity Center "Fun Shine" summer program:
Jesse Jones Park summer kids nature camps:
Moorhead Blueberry Farm - pick your own blueberries
Miller Outdoor Theatre
Houston Stay At Home Mom events page:
If you know of any other cool things going on in town - please email me, and I will add them to the list.