This region has become fertile due to volcanic ash.

The volcanic ash covered the entire town.

This region is covered with fertile soil.

This region is covered with fertile soil.

In my area, a summer festival is held every year.

We went to see a volcano during the summer vacation.

Katsukazan is one of the most famous active volcanoes in Japan.

It is said that an extinct volcano will no longer erupt.

We are planning to visit the volcanic island during summer vacation.

She likes to decorate her room with flowers.