Circular walks with more than 10 caches. Only the last cache of each circuit is listed here, which should give an indication of how many caches there are in total.
Multis and mysteries are probably just bonus caches for the ring...
UPDATE - 15 or more caches now required for inclusion! i won't remove the smaller ones for now though...
About Bookmark Lists
A bookmark list is a user defined collection of listings. They can be used as to do lists, watch lists, a way to organize listings you find, or whatever you decide. You can keep them private or share them with others.
Bookmarks can be added on the page for the listing or on this page using the waypoint name.
Bookmark names may be different than the actual listing. Click on the listings to see the actual names.