places and there are people on a waiting list," said a federation official.

The secret of the farm visits' exploding popularity appears to be the hands-on experience they offer. Visitors can learn what it's like to plant crops on a working farm, rather than just watching a harvest.

"I could experience using a hoe, which I've never done before," said a woman in her 60s who took part in a tour.

"Next time I would like to learn about fertilizers," said a man in his 60s.