A Groundspeak Premium Membership provides you with Pocket Queries you can download caches based on search criteria, and the ability to create and view member-only caches. Not to mention, you'll be contributing to the support and maintainence of the Geocaching.com site.
Features include, but are not limited to:
- Member only caches: Some caches will only be available to premium members. These have not been popular in Australia. As the cache owner, you can make any of your caches "subscriber only," so players will need a subscription to seek it out. Member only caches may not be any better than public geocaches.
Please though, consider listing your caches on Geocaching Australia to support our efforts here.