This summer over the course of 9 weeks, my daughters will spend 5 weeks abroads. 3 weeks at my parents place in one country, 2 weeks at their other grandfather house in another country. The 2 remaining weeks we will have family visit and can spare taking a few days between me and their mother.

With a bit of organization it is not that challenging to have kids. Also there are a number of possible summer activities with school like schedules for those who have less family around + possibility to hire a student to take care of kids while you are working during summer.