Dear Tom,
Thank you for your letter. I'm also happy that summer holidays are coming soon! As for your questions, my summer holidays usually start in June. I often travel in summer, especially to the countryside to visit my grandparents.
Last summer, I went to the sea with my family. We had a great time swimming, sunbathing, and building sandcastles. It was a wonderful experience.
What are your plans for this summer?
Best wishes, [Your Name]