I've just started my summer holidays, so this morning I've decided to go to the seaside with my parents. It was a hot day, but it was also a pleasure to lie in the sun because there was some wind. However the beach wasn't crowded, but quite silent quiet (you use silent if there is no noise, quiet if there is some noise). I spent my time reading a book and talking with my parents and also looking at some children, which who (children are people, so use who instead of which) were playing with kites. We came home for lunch. It was a relaxing morning and I hope I'll have other beautiful days like this one.

Very good! Your level of English is very high :)