Помогите, пожалуйста!

Dear Peter,Thanks for yourletter. It was nice of you to drop me a line.I’m doing verywell. We spent the summer at the seaside, and you know how I enjoy swimming,so it was endless fun for almost three weeks. We also did diving andsnorkeling. We stayed in a nice cozy hotel at a Cuban resort Playo Cayo. I made several friends over there, so now there's more people to send a Christmas postcard, haha. Actually, I miss those good times. Now I'm back to school, the days are mostly dull and rainy, so your birthday is definitely something that would cheer me up. I have already sent your present, I hope that you will like it. I'm tempted to reveal what is there, but I'll try to keep it a surprise present.Are you expecting a lot of guests for your birthday? Where will you be holding a party? I wish I were there, but it's too far.Anyways, have a great birthday and hope that you'll send me some birthday pictures.Let's stay in touch.Your friend, Аяо