rock

A rock is a large stone found in nature. It is very solid and heavy, so it stays in one place for a long time.

Rocks are easily seen in mountains or on beaches. They can be a resting place when hiking or a place to take beautiful pictures.

Rocks have had a close relationship with human life since ancient times. They were used as materials for cave dwellings and castle walls, and were also used to create monuments with religious and cultural significance, such as Stonehenge.

In modern times, rocks have become a key element in sports such as climbing and bouldering. In particular, sport climbing became an official event at the 2020 Tokyo Olympics, gaining more attention, and indoor climbing gyms are increasing worldwide.