Ok, here is a few pictures of my school garden.......

About 6 meters

This is where we plan to plant. Between the two plants and those behind them.

This is the width of the garden. About 11 meters.

And here is the little flytrap with the drosera accompanying it

so cute!
My friend and I just plan to make a small minibog, about 3 meters in length and a meter in width. The depth, I am not sure. Any ideas?
Cheers