There's a quiet snobbery in fell walking that measures a day by the height of the summit. In truth, some of the finest outlooks in the Lake District belong to fells you can climb in an hour, with the flask still warm when you reach the top. Lower fells often follow old packhorse tracks and coffin routes, so you get graded zigzags rather than loose scree. Because they sit close to the valley floor, the view is of the water, the woods and the bigger fells opposite — the composition that makes this corner of England so beloved. Add a swim on the way down and you have a complete, satisfying day out without ever touching a scramble.
Start with the map, not with someone else's list. For an easy half day, look for routes of five to eight kilometres with under 300 metres of ascent. Contour lines tell you more than distance ever will: if they cross your path in a tight cluster over a short stretch, the climb is steeper than it looks and the descent will be harder on the knees than the ascent was on the lungs.
Weather changes the picture fast. A fell that is a gentle stroll in still air can feel exposed once you leave the shelter of the trees, and low cloud turns a straightforward ridge into a navigation exercise. Wind above the treeline is usually stronger than it looks from the car park, and rain makes grass and slate greasy. A breezy afternoon on a low, wooded fell beats a miserable trudge along a cloud-covered ridge every time.
Tarns and river pools sit conveniently on the descent from most of these fells, which is one of the great pleasures of a low-level day. Easedale Tarn, Blea Tarn above Langdale and the pools along the upper reaches of the Esk and the Duddon all offer cold, clean water in handsome surroundings. Shallows at the edge of a tarn are usually the safest entry; wade in slowly and let your breathing settle before you commit.
Treat every swim as a cold-water swim, even in August. Enter gradually, keep the first dip short, and get dressed warmly before you start to shiver. Never jump into water you cannot see the bottom of, and stay well clear of weirs, sluices, dam outflows and any tarn outlet where the current pulls. Blue-green algae can appear in still water during warm spells, so avoid anything that looks like green paint. Cover cuts and grazes before you swim, and shower or wash properly afterwards.
Most of the higher ground here is open access land, shown on Ordnance Survey maps as a pale orange wash. That gives you the right to roam on foot, but it does not mean every route is a path — on access land, stay on obvious trodden lines during nesting and lambing seasons, and always use gates and stiles rather than climbing walls.
Rights of way are different: footpaths and bridleways are legal lines on the map, and you should keep to them where they cross private land, farmland or the in-bye fields around a farm. Follow waymarkers, leave gates as you find them, and never take a shortcut through a field of crops.
You need less than you think, but you do need the right less. A paper map and compass, a waterproof jacket and trousers, a warm layer, water, a torch, and a towel and dry bag if you plan to swim. Add footwear with real grip for wet grass and slate. Tell someone your route and expected return, and turn back if the cloud drops or the wind picks up — the valley view will still be there next weekend.