Clare McGrath Merkle's website www.crossveil.org tells about many things that are new-age practices being used today. Clare was heavily involved in the new-age movement and warns about many of the practices of the occult which includes the use of 'labyrinths'.
Clare can also be seen on EWTN's "Abundant Life" with Johnette Benkovic discussing above topic.
Labyrinths are used today for 'new-age' meditations and are not Catholic. And anyone who truly is dedicated to the traditional Latin Mass usually knows this, as does many novus ordo partakers; yet there are those that continue to be fooled by the modernist thinkers.