Craig Aberserw

The walk up Craig Aberserw isn't particularly long, but it's steep enough to keep you honest. Starting from near Dolgellau, you're climbing roughly 500 metres to reach the summit, and the final push rewards you with proper views across the Cader Idris range and down to the Mawddach estuary. On a clear day it's genuinely spectacular.

This is walkers' territory. You'll want decent boots and at least two hours to go up and back down without rushing. The path itself is straightforward enough - not scrambling or anything technical - but it's relentless in places. Families with younger kids might find it a slog, though teenagers who've got their hiking legs usually manage fine. History buffs won't find much to grab them here; this is about the landscape and the exercise.

Free, naturally. No visitor centre, no facilities at the top, so bring water and something to eat if you're making a day of it.

For a proper peak-bagging break in Gwynedd, pair it with the nearby waterfalls at Rhaeadr Nantcol - they're only 5.6 miles away and brilliant if you want something less strenuous. Torrent Walk Campsite is your closest base if you're staying in the area, though the ratings suggest it's a bit hit and miss. The walk itself is popular with locals who know what they're doing, which is usually a good sign.