If you don't want to get out of shape during your holiday, do this short training of 20 minutes: 3 x a week or every other day.
50 sec. work - 10 sec. rest.
2 rounds / 10 exercises:
1. mountainclimbers
2. push-ups
3. squats
4. crunches
5. burpees
6. plank
7. jump-squats
8. triceps -dips
9. high knees
10. lunges