Если я правильно понял задание, то выходит что-то типа этого:
One morning two young men decided to go climbing up to the mountauns. It was a sunny day. They had ropes, climbing equipment and strong shoes. They were climbing for five hours and reached the top of the mountain by one o'clock in the afternoon. They had taken some photos when the weather suddenly changed and it began to snow. They started climbing down again. It was very difficult because they couldn't see anything so they had to stop and to put up the tent. Climbers had a mobile phone and they rang to the rescue servise for help. They were waiting for many hours. It was getting very cold and they suddenly heard the sound of a helicopter. Helicopter flew closer and found them so climbers were rescued. They were safe.