How to transfer gpx files via macbook

[Stressedhippo]

Help, Does anyone know how I could transfer walks (in gpx or any other format) from walkingworld.com to by garmin via a macbook. I have tried and failed, probably operator error!!!!!

[Bear and Ragged]

Old, but works!
MacSimpleGPS

http://www.macsimplegps.com/oldsite/index.html

Works, as in, I haven't tried to download walking route etc., with it, but it does allow GPX files to be transferred to your GPS.