Labyrinths are not difficult to create, here is a nice one from Knowth.com
Garden Labyrinth with standing stone, the larger stones in the ground (at the front in the photograph) mark the setting sun at the winter solstice, equinox and summer solstice. Three stones on the east of the labyrinth (at the back in the photograph) mark the rising sun at the winter solstice, equinox and summer solstice.
When the Garden Labyrinth was first constructed, the paving bricks were placed on the grass, maintenance was time consuming, so the paving bricks were sunk to be flush with the ground.
The design is a classical 7 circuit labyrinth. The centre was changed so that there are no straight lines, like the entrance stone at Newgrange.