Spring is the valley showing off. After the wet winter the Cabuérniga turns a deep, saturated green almost overnight, the meadows fill with flower and the hedgerows fill with birdsong, and the walking trails dry out enough to open back up properly. If you like the valley at full throttle — lush, loud and growing fast — this is your season in Green Spain.

It's an easy season to underrate if you've only ever thought of a Spanish holiday as a summer one. Spring here isn't a warm-up act before the main event; for plenty of regular walkers, it's the reason they keep coming back at all.

What does spring look like on the trails?

Green, and then greener. The hillsides fill in week by week, the streams run high off the winter rain, and wildflowers push up along the hedge lines and pasture edges as the soil warms — nothing dramatic or curated, just a valley doing what an Atlantic spring does when left alone. The beech woods leaf out overhead, and the whole valley smells of growth and wet earth after a shower. Walk the marked routes above Fresneda or the river Saja paths and you're moving through a landscape that's visibly changing under you from one week to the next, sometimes almost day to day after a warm spell. Lambs in the fields, blossom on the trees, swallows back under the eaves — the works.

Is the weather reliable in spring?

No — and it's kinder to say so plainly. Atlantic spring is changeable by nature. You'll get bright, clear mornings and passing afternoon showers, sometimes in the same walk, so you dress in layers and keep a waterproof to hand. This is the trade you make for all that green: the same weather that fills the streams and paints the meadows is the weather that keeps you on your toes. If you need guaranteed wall-to-wall sun, spring on the north coast isn't it. If you'll take a shower for the reward of hills this alive, it very much is — and the light between the showers is extraordinary. Bring a proper waterproof and a warm layer for the evenings, and treat any sunny stretch as a bonus rather than an assumption; that's really the entire strategy.

This is the week we do it: Solar Eclipse in Northern Spain.

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What's coming up in the garden?

The house garden wakes up in spring too, and that matters here, because dinner comes largely out of it. Half board means breakfast and a home-cooked evening meal every day, much of it grown a few steps from the table, and spring is when the kitchen starts leaning back into fresh green things after the winter stores — the first of the salad crops, herbs coming back, whatever's ready to pick that morning. Rob and María do the cooking and the hosting, Chispa the house dog supervises from somewhere underfoot, and the house wine, beer and spirits are poured through the day — so a wet afternoon indoors comes with a fire and a full glass, not a bar bill waiting at the end of it.

What else is happening in the valley?

Spring belongs to the birds. The migrants are back and singing from first light, the resident griffon vultures work the ridgelines as they do all year, riding the thermals once the day warms, and the woods are as busy overhead as underfoot. It's a fine season for anyone who likes their walking with wildlife attached — quieter than summer, greener than autumn, and full of movement everywhere you look. The coast is close too if you want a change of scene: the surf beaches are around forty minutes away and just as welcoming to a first-timer as to someone who's surfed for years, and Santillana del Mar and the caves at Altamira are around half an hour away for a softer day when your legs want a rest from the hills. Comillas and its Gaudí building, El Capricho, make a similarly easy day trip if you fancy swapping boots for a wander around town instead.

Walking it, solo or as a group

The scheduled per-person walking weeks are run with the walking specialists Walkwise and booked through Spice Escapes (ATOL 9046), who've run hosted group holidays for over forty-five years — you just book the week, no membership required. Come alone or as a couple: there's no forced single supplement, with twin-share matched to a same-sex room-mate at no extra charge, or a room of your own for a clearly-priced supplement. Prefer to keep the place to your own party? A group can take the whole catered house, with the same half board looking after everyone.

Fancy the valley in flower? Tell us when you're thinking of coming and we'll be straight about what spring tends to do — say hello, or see the spring weeks Spice runs across Green Spain and beyond →.