Help correct (English)

We are going camping in the morning. We're ready. At nine o'clock, we left home. We are climbing the mountain. Suddenly, it rained heavily! We were not prepared for rain, so we all got wet. We quickly climbed to the top of the mountain and hid under a big tree. We have to wait, it has been raining for a long time. We feel very bad. What a terrible experience!

It is raining!

We plan and prepare to go camping in the morning. At nine in the morning, we left home. While we were climbing the mountain, it suddenly began to rain. But none of us were prepared, so everyone was soaked. So we quickly climbed to the top of the mountain and hid under a big tree. We all feel terrible. What an unpleasant experience!