Our 3 week break is over and we are back in the saddle, so to speak. Even though we school year round, our learning time looks much different in the summer. I have fooled around with our summer routines over the years and have found a rhythm that works well for us. We started implementing this yesterday and the kids appreciated doing school this way as a change from the 'same old same old.'
This is how our day looks:
Breakfast
Chores
Kids can play or do whatever they would like to do, Mom gardens
Read aloud and Five in a Row book
Lunch
Kids play, Mom cleans up
Learning time
Free time for both Mom and kids
Mom and kids clean up house
Supper
Free time
Bed
As I said before, this has been working out very nicely. When the weather gets a bit warmer, the kids don't like being outside in the afternoon as it is too hot for them, so it works to do our learning then. This way they can play outside in the morning and I can get my gardening done before the heat of the day descends upon us. I should clarify that the heat does't really get here until July, but we are practising for it until then. 
Also, our learning time consists mostly of math, reading and read alouds. We are still using workboxes so I may put in some extras things like writing so they can get done periodically. It only takes us about 2 hrs. max to get our school work done. Even mom is liking the summer schedule.