A piece of land 10m x 24m. You could play a game of tennis on that, park a truck on it, even build a small holiday house.
Or you could do what Abbotsford School has done - build what is believed to be one of the largest school vegetable gardens in Dunedin.
Teacher in charge of the garden John Willemsen said the school was replacing its former, smaller vegetable garden with several large plots and a greenhouse in which it hoped to grow a feast of vegetables.
Mr Willemsen said the new gardens were established to help teach pupils at the school about sustainable living.
He said the programme would not only teach pupils about the growing process, it would give them ''real life'' maths, statistics, technology and design lessons.
''It's hands-on learning where kids can learn about things like mathematics in a real-life context.''
Pupils would grow carrots, cabbage, silverbeet, runner beans, corn and potatoes in garden plots, and in their greenhouse they would grow tomatoes and cucumbers.
''There is a competitive aspect to this as well. Each class will use vegetables from the garden to make soups, and there will be an award for the best soup.''
Mr Willemsen said the majority of the vegetables would be sold at the school's market day, which would help pay for next year's compost and seeds.
''It'll help continue the sustainable process.''