There should be as little asphalt as possible, in order for the water to be absorbed by the earth and to not have run-off into the lake.
Please use as little asphalt as possible; the ground should be permeable. It's important to lead the way on sustainability. The idea of a labyrinth is wonderful, but not at this location. Perhaps it could be at St. George's Square where there is more space. The town square should be as open as possible so as to have space for the annual jazz fest and for children to run around.