Her main hobby is roaming through the city and observing life.

He takes a very special interest in gardening, which is his main favorite hobby as well.

His main hobbies apart from chess are mathematics and music.

If someone whose main hobby is cookery and they don't know the basic terms, I think that's quite fun.

She lists reading and music as her main hobbies.

He is a vegetarian, and his main hobby consists of battling other fools.

She was a very serious person whose main hobby seemed to be an avid interest in professional basketball.

His main hobby at the time was drawing, especially planes and other technological items.

That's always been one of your main hobbies anyway.

He is an avid lover of aviation, his main hobby for many years.