INFORMAL LETTER
Dear Jim,
I’m writing to you because of I want to thank you for the wonderful time I spent with you last weekend.
On Saturday I really enjoyed a lot during our visit around the city: we saw monuments, historic places, walked in natural views (¿caminamos en vistas naturales?), and we also got had a little time to go shopping in the evening!
Finally, on Monday we got up late as we had enjoyed a fantastic party the night before. We were watching TV in at your house until I had to come go back home.
It was an unforgettable weekend. I hope to meet see you again you very soon!
Best wishes,
Anna
Not bad. Be careful with the tone of the letter - informal. Teachers will say that "Dear" is very formal, for business letters or older people, (como el uso de "Usted" en español).
"Come" - venir
"Go" - ir. Depende de tu punto de vista.
Saludos,
Simón.
INFORMAL LETTER
Hi Jim,
I’m writing to you because of I want to thank you the wonderful time I spent with you last weekend.
On Saturday I enjoyed a lot during our visit around the city: we saw monuments, historic places, walked in natural parks, and we also had a little time to go shopping in the evening!
Finally, on Monday we got up late as we had enjoyed a fantastic night party. We were watching TV at your house until I had to go back home.
It was an unforgettable weekend. I hope see you very soon!
Best wishes,
Anna