Не написано, какие именно каникулы, поэтому предположу, что летние:
Summer is over and now it's time to go back to school. My summer holidays were wonderful! I had so much fun, I spent most of the time outside with my friends. In July me and my parents went to the countryside to visit my relatives that we haven't seen for years. We had such a good time there: we were swimming in the lake and sunbathing. August was the best month because we were travelling around the country. I saw so many beautiful places and learned so many new things!
Although my summer holidays were great, I missed my classmates and teachers. I couldn't wait to go back to school. Thanks to long and good holidays I'm full of energy and ready to study well this whole school year.
Надеюсь, сойдет =)