DearSam,

　　How'severthinggoing?IhavecometoHawaiiwithmyfamilysincesomedaysago.Itisabeautifulisland.Ireallyliketheweatherhere.Inthedaytime,itissunnyandhot,andweenjoythesunshineonthebeach.Butitisalsocrowded.Alotsofpeopleareswimminginthesea.Somepeopleareplayingbeachvolleyball.Whatgreatfunwehave.Intheevening,wedanceandsingtogether.Themoonlightiscoolandsoft.Soitiswindy.ThemostimportantthingisthatImakemanyforeignfriends.Theyareoutgoingandfriendly.Iamsohappy.

　　Howaboutyou?Writemesoon.

　　Yours

　　XXX

　　做了些补充,如果只写天气就太枯燥了,也写不了一篇好文章.