Ariel drone view of mountainous landscape with rolling clouds flowing over peak

Journal your hikes and share your adventures.

Bag peaks across the UK & Ireland, track your progress and see updates from Donder's growing community of hikers.

Donder's profile view available to users after sign-up, shows example user with progress tracking, hiking journal and user leaderboard

Thumbnail image for Mynydd Ynyscorrwg showing contour plot for surrounding peak
WLS
Icon of location pin
502m
Icon of vertical, double ended, arrow to symbolise height of mountain

Mynydd Ynyscorrwg

Icon of mountain used to symbolise the number of ascents made by users

0
Ascents

Thumbnail image for Pen Erw-goed showing contour plot for surrounding peak
WLS
Icon of location pin
119m
Icon of vertical, double ended, arrow to symbolise height of mountain

Pen Erw-goed

Icon of mountain used to symbolise the number of ascents made by users

0
Ascents

Thumbnail image for Castle Bank [Welshpool to Hay-on-Wye] [SO072776] showing contour plot for surrounding peak
WLS
Icon of location pin
476m
Icon of vertical, double ended, arrow to symbolise height of mountain

Castle Bank [Welshpool to Hay-on-Wye] [SO072776]

Icon of mountain used to symbolise the number of ascents made by users

0
Ascents

Thumbnail image for Garn Gron showing contour plot for surrounding peak
WLS
Icon of location pin
541m
Icon of vertical, double ended, arrow to symbolise height of mountain

Garn Gron

Icon of mountain used to symbolise the number of ascents made by users

0
Ascents

Thumbnail image for The Knoll [Neath to Chepstow] showing contour plot for surrounding peak
WLS
Icon of location pin
102m
Icon of vertical, double ended, arrow to symbolise height of mountain

The Knoll [Neath to Chepstow]

Icon of mountain used to symbolise the number of ascents made by users

0
Ascents

Thumbnail image for Boulston Hill showing contour plot for surrounding peak
WLS
Icon of location pin
54m
Icon of vertical, double ended, arrow to symbolise height of mountain

Boulston Hill

Icon of mountain used to symbolise the number of ascents made by users

0
Ascents