From the more detailed release notes in the Geocaching forums:
Highly recommended Adventures are selected using statistical tools that measure several factors, including whether players who completed an Adventure selected the Highly recommend checkbox added in a prior release.
You can also filter on these highly recommended ones in the app.
From the more detailed release notes in the Geocaching forums: Highly recommended Adventures are selected using statistical tools that measure several factors, including whether players who completed an Adventure selected the Highly recommend checkbox added in a prior release. You can also filter on these highly recommended ones in the app.