Last winter vacation, I and my parents had a wonderful time on Mountain Tai, the most famous of the five great mountains.It is located in Tai'an where my grandpa and grandma live. On the foot of Mountain Tai, there is a deep pool called Black Dragon Pool. Its water was dark green. It looked like a mysterious prince. There is a legend that the water of Black Dragon Pool can flow into the Baotu Spring in Jinan. If you throw a coin into this pool, you can find it in Baotu Spring. We played therefor a long time with happiness.Then, we took a bus to the beginning of the hike. To climb on the top of the mountain, it was a long way ahead of us. Thoughmuch energy was burned, we don't feel tired. The beautiful scene on the top of the mountain gave us motivation. Finally, we got the top of the mountain. The road behind us seemed to be almost flat. Wow, a fantastic painting appeared to us. There was sea of clouds. The fog covered the mountain, and there was a faint view of the rolling hills and the looming cable car.What an amazing scene it was!