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 Battle Hill [Llandovery to Monmouth] showing contour plot for surrounding peak
WLS
Icon of location pin
397m
Icon of vertical, double ended, arrow to symbolise height of mountain

Battle Hill [Llandovery to Monmouth]

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

0
Ascents

Thumbnail image for Cefn y Rhondda showing contour plot for surrounding peak
WLS
Icon of location pin
481m
Icon of vertical, double ended, arrow to symbolise height of mountain

Cefn y Rhondda

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

0
Ascents

Thumbnail image for Pen y Bryn [Barmouth to Betws-y-Coed and Bala] showing contour plot for surrounding peak
WLS
Icon of location pin
309m
Icon of vertical, double ended, arrow to symbolise height of mountain

Pen y Bryn [Barmouth to Betws-y-Coed and Bala]

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

0
Ascents

Thumbnail image for Twr Glas showing contour plot for surrounding peak
WLS
Icon of location pin
228m
Icon of vertical, double ended, arrow to symbolise height of mountain

Twr Glas

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

0
Ascents

Thumbnail image for Craig-y-dduallt showing contour plot for surrounding peak
WLS
Icon of location pin
400m
Icon of vertical, double ended, arrow to symbolise height of mountain

Craig-y-dduallt

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

0
Ascents

Thumbnail image for Pen Maesmerddyn showing contour plot for surrounding peak
WLS
Icon of location pin
408m
Icon of vertical, double ended, arrow to symbolise height of mountain

Pen Maesmerddyn

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

0
Ascents