( google translate )
Hello,
GEOCACHING.COM on the site, they will have created a series of waypoint to search for clues and to walk around the same occassion
but by default (without pay), the format is proposing LOC
if the format is a proprietary format, you could add the LOC format in the list of waypoint format qu'oruxmap can open more GPX
thank you
edit:
attention, I do not know if you can open the link
but here's a direct link
https://www.geocaching.com/geocache/GC6219D_jardin-de-lhotel-de-ville