DD1 (year 11) is going on holiday for a week with her friends (gulp!), then I think there's about 3 weeks until our family holiday.
We're then away for 2 weeks with all 4 DDs, and then they have about another month until they're due back at school.
All 4 DDs are going to a dance summer school for a week, and then they will do one off day camps at cheer and gymnastics. Luckily they still have weekly dance, gym and cheer going on, so the extra curriculars stay almost identical to term time.
In the interim few weeks DD1 and DD2 will go out with friends, DD3 and DD4 will beg for sleepovers as it's not fair that DD1 and DD2 get to see their friends all the time...
Otherwise I think it will be lazy days in the house, DVD watching, shopping, having friends over, swimming, going to the gym for the older 2, maybe some baking, quieter things.