Dear [Friend's Name],
Thank you so much for your letter! I really appreciate hearing from you.
In response to your first question, I think this summer would be perfect for attending a camp focused on outdoor activities, as I love being in nature. Regarding the second question, I plan to join a photography camp, where I can develop my skills and capture beautiful landscapes. Finally, I am indeed excited to meet new people at camp and share experiences with them.
I hope to hear about your summer plans as well!
Best wishes,
Justin