If you like to climb mountains in the UK, and use an Apple Watch (or other gps device that shares location data with HealthKit - so not Garmin currently) I built an app for you.
PeaksPlus has a database of over 40,000 significant peaks in the UK and Ireland which it can compare to your completed workouts and provide feedback on those peaks you have climbed. Think of it like strava segments but for mountain peaks! All offline, no data shared, stored purely on device.
The app's database also display peaks alongside detailed location information, grid references, elevation etc, and can display it all on a map, or a searchable, sortable and filterable list.