Duinen van Texel
The whole wild west flank of the first Wadden island — a breached dune valley where the sea walks in over sea lavender, spoonbills in the marshes, and the Hors growing new land to the south.
Texel is the first and biggest of the Wadden islands, and its entire North Sea flank — thirty-odd kilometres of beach, dune and dune-slack from the ferry harbour to the lighthouse — is the national park. The interior is neat Texel farmland with the famous sheep; the park is everything the wind still owns. It is also, characteristically for the Netherlands, a landscape with an engineering plot twist at its heart: De Slufter, the park's signature, is a vast dune valley that the sea enters at will through a gap in the outer ridge — the relic of a failed nineteenth-century reclamation whose sand dike storms kept breaching until the engineers finally shrugged and left the breach open. The result is the country's finest salt-marsh-behind-dunes: a tidal creek fanning across a plain that goes violet with sea lavender in late July, samphire underfoot, spoonbills and shelducks working the channels.
The bird story is old and institutional. De Muy, the marshy dune valley south of the Slufter, has held a spoonbill colony since the early twentieth century — one of the ancestral Dutch colonies from which the species' European recovery was seeded — and De Geul near the southern tip carries its successor at greater strength. Between them the dunes run the full ecological keyboard: lime-poor northern valleys with orchids and wintergreen, eider and harrier country, and at the island's south end the Hors — an enormous bare sand plain where the sea is actively building Texel outward, new embryo dunes rising in ranks you can watch thicken year by year. The seals and the seabird hospital at Ecomare, inside the park at De Koog, have been patching up the local wildlife since 1952.
For all the wildness, the park is profoundly visitable — this is a Dutch holiday island, and the dunes carry an exemplary path network plus the beach itself, numbered by its paal marker posts. The trick is the season: the same dunes that hold twenty thousand towels at paal 20 in August are empty at either end of the year, when the light goes long, the migration pours down the coast, and the island reverts to its residents.
What's worth knowing before you go
The ferry from Den Helder runs every hour and takes twenty minutes; on the island, do as everyone does and get a bicycle — the park path along the dune foot connects every valley and entrance. Ecomare is the de facto visitor centre. The Slufter is the essential walk: enter over the dune stair at the northern car park and time it for low water so the creek plain is open (and mind that high spring tides legitimately flood it — the closure signs mean it). Late July for sea lavender, May and September–October for migration, midwinter for total solitude and hunting hen harriers. The connoisseur's corner is the Hors at the island's south tip: walk out from the Mokbaai an hour before sunset and you have a desert's worth of new Netherlands, still wet from the mould, entirely to yourself.