Исправьте, пожалуйста, ошибки. Буду очень благодарна! Заранее спасибо!! 

Summer is a very great time in the year. In summer children don't go to school. They have summer holidays which three months long. Pupils don't have to get up early. There is no homework to do and lessons to learn.
I like summer holidays because I have a lot of free time. I never stay in bed long on a bright summer morning. In june most of the time I spend in Omsk. I went to the cinema with my friends, walked in parks and visited art museum. Every summer I go to the country to stay with my parents for two weeks. In the middle of july I visited Greece. I rested on the Chalkidiki Peninsula. This peninsula bathed by the Aegean Sea. Most of the time the weather was hot. Unfortunately, I couldn't enjoy the sea in full size, because on the second day of my trip I tumble down off a bicycle in mountains and had serious problems. All my body and face were in sores, scratches. I went to the doctor. He was suturing my jaw. And the last summer month I spend in the countryside. I helped my grandmother in the garden and went on long bike rides with my sister and brother. Also we were sitting by the fire and singing songs.
I like my summer. Summer holiday are never too long for me.