Dear Mr Slater.
Thank you for your letter.
I hope to have a good time learning English because it is really important for getting a job currently.
Regarding my accommodation I would rather be with English speaking families because I need to live in a pleasant and quite place, If I stayed at youth hostel I would hang around with young people as a consequence I would not focus on improving my English.
With reference some free time activities they fancy playing outside sports such as mountain biking, rock climbing or kayaking.
In this way they could work in a team and build up their relationships.
Finally, How is the weather there?
What type of clothes should I wear for your country?
Is it cold or hot?
I hope that answers your questions.
Please write to me if you need to any more information.
Yours sincerely.