At about 41,545 km², including 8,064 km² of water, the Netherlands is a small, low country on the North Sea between Belgium and Germany, built largely by the deltas of the Rhine, Meuse and Scheldt. Roughly half the land lies less than 1 m above sea level and about 26% lies below it, protected by dunes, dikes and pumps. The west and north are flat polders, river clay and peat; the east and south rise into sandy ridges left by ice sheets and, in the far south-east, the foothills of the Ardennes. The highest point in the European Netherlands is the Vaalserberg, about 322 m, and the lowest is the Zuidplaspolder near Rotterdam, 6.76 m below sea level. The Rhine is the main river, splitting into the Waal, Nederrijn and IJssel.
The best way to see how those pieces fit together is to follow the water. The route below starts where the Rhine crosses the German border near Lobith, follows its northern branch, the IJssel, past the ice-pushed hills of the Veluwe to Kampen, and then crosses the reclaimed floor of the old Zuiderzee and the Afsluitdijk to the tidal flats of the Wadden Sea.
Spijk and Lobith to the Pannerdensche Kop: Where the Rhine Splits
Tradition says the Rhine enters the Netherlands at Lobith, a village in Gelderland. The actual border crossing is about 4 km upstream near Spijk. Lobith itself shows how restless the river is: until 1711 the Rhine ran right past the village, then it shifted its course away, and trade moved to neighbouring Tolkamer. Here the river is at its widest, a single channel called the Boven-Rijn, or Upper Rhine.
Within a few kilometres comes the first and most important fork. At the Pannerdensche Kop, near Millingen aan de Rijn, the Rhine divides. The southern branch, the Waal, takes about two-thirds of the water and carries it west past Nijmegen towards Rotterdam, eventually meeting the Meuse. The northern branch is the Pannerdens Kanaal, a cut dredged between 1701 and 1709 to bypass a large, shallow bend of the river. The bypassed loop survives as a backwater called the Oude Rijn. At Angeren the canal becomes the Nederrijn, and just east of Arnhem, at Westervoort, the IJssel branches off northwards. The IJssel carries about one-ninth of the Rhine’s flow and the Nederrijn about two-ninths.
These three branches, with the Meuse and Scheldt further south, form the Rhine–Meuse–Scheldt delta, which covers about 25,347 km² and is the largest river delta in Europe. The land between the Waal and the Nederrijn and Lek is the Betuwe, whose name is usually read as “good island”, a stretch of fertile river land known for centuries as the fruit garden of the Netherlands for its orchards. Further west the Nederrijn becomes the Lek at Wijk bij Duurstede, and both it and the Waal reach the sea through the old Meuse estuary near Rotterdam. For the full picture of that western delta, see our guide to the Rhine delta.
Down the IJssel Past the Veluwe Push Moraines
Turning north from Westervoort, the IJssel is a gentle lowland river that meanders through its floodplain. Some of its bends have been cut off, near Rheden and Doesburg shortening the river from about 146 km to 125 km. Its link to the Rhine may itself be artificial: tradition credits the Roman general Drusus with digging a channel around 12 BCE, joining the Rhine to the lower course of the small Oude IJssel, which is now a tributary about 70 km long. Further north the IJssel collects the Berkel at Zutphen, the Twentekanaal just beyond, and the Schipbeek near Deventer.
On the left bank, the ground rises. The Veluwe, a forested ridge of about 1,100 km², runs 60 km from north to south and reaches about 110 m, which makes it high country by Dutch standards. It is the largest push-moraine complex in the Netherlands. About 200,000 years ago, during the Saalian glaciation, ice sheets roughly 200 m thick advanced into the country and shoved the sand deposits of the old Rhine and Maas delta sideways into ridges. Because those hills are made of sand, rain sinks quickly and flows tens of metres underground to the edges, where it reaches the surface again. The ridge itself is woodland, heath and small lakes, and it holds Europe’s largest sand drifts, while the edges were once ringed by swamps.
The contrast is written into the names. Veluwe comes from words meaning “fallow” and “island”, pale, poor land, as opposed to the fertile Betuwe to the south. Around the edges, farmers drained the springs and marshes over the last 150 years; since the 1990s some of those drains have been blocked again, and near Epe the Wisselse Veen has turned back from dry heath to wetland within a few hundred metres.
Kampen, the Ketelmeer and the Polders of Flevoland
Below Deventer the IJssel runs on through floodplain meadows to Kampen, a former Hanseatic town with one of the best-preserved old centres in the country. Just downstream, the river splits into several distributaries and builds a small delta of its own. Some of these channels were dammed before 1932 to reduce flooding, because north-westerly gales used to drive salty Zuiderzee water back up the delta.
The IJssel now empties into the Ketelmeer, a lake of about 3,500 hectares that was left behind as a channel when new polders were built on either side of it. To the north lies the Noordoostpolder, pumped dry by September 1942 to create 480 km² of new land. It swallowed two former islands: Urk, still a separate municipality, and Schokland, a strip of peat whose permanent settlement the government ended in 1859 after repeated floods, and which became the first UNESCO World Heritage Site in the Netherlands. Building it took two dikes totalling 55 km, one from Lemmer in Friesland to Urk and one from Vollenhove in Overijssel to Urk; both were closed in December 1940, months after the German invasion, and the pumps started early in 1941. To the south lies Eastern Flevoland, 540 km², drained in 1957, followed by Southern Flevoland, 430 km², in 1968. Together they form the Flevopolder, surrounded on all sides by water and by some definitions the world’s largest artificial island.
The Flevoland polders lie below sea level on the former seabed and are kept dry by pumping stations; a fifth planned polder, the Markerwaard, was shelved in 1986. That year the Noordoostpolder and the Flevolands became Flevoland, the Netherlands’ twelfth province, with Lelystad as its capital and Almere, built from scratch on the polder, as its largest city. The Houtribdijk, built between 1963 and 1975 from Lelystad to Enkhuizen, split the remaining lake into two: the Markermeer to the south and the larger IJsselmeer to the north.
Across the IJsselmeer and the Afsluitdijk to the Wadden Sea
North of the Ketelmeer the route opens onto the IJsselmeer, a freshwater lake of about 1,100 km² with an average depth of only 4.5 m. Two thousand years ago the Roman geographer Pomponius Mela described a group of lakes here, Lacus Flevo. Storm surges in the 12th and 13th centuries broke through to the North Sea and turned the lakes into a salty bay, the Zuiderzee, which flooded its shores repeatedly. After a severe flood in 1916 the Dutch parliament approved the Zuiderzee Works, the programme that produced both the polders passed on this route and the dam at its end.
That dam is the Afsluitdijk, built between 1927 and 1932. It runs 32 km from Den Oever in North Holland to Zurich in Friesland, is 90 m wide and was built between 6.7 and 7.4 m above the Amsterdam datum, higher where it crosses the deep Vlieter channel. It has been raised several times since the North Sea flood of 1953, and a major upgrade began in 2019 that will lift it by roughly 2 m more. A motorway runs along its crest, and the Stevin and Lorentz sluice complexes let lake water out to the sea.
On the seaward side lies the Wadden Sea, the end of the route. It is an intertidal sea of sand and mud flats behind the chain of Frisian Islands, running about 500 km from Den Helder in the Netherlands to Skallingen in Denmark and covering some 10,000 km². It is an important area for breeding and migrating birds, with hundreds of thousands of waders, ducks and geese stopping or wintering there. Its shores have a long record of disaster, from the Saint Marcellus floods of 1219 and 1362 to the Christmas Flood of 1717, floods that killed thousands, some of which redrew the coastline; so many dikes and causeways have since been built that it counts among the most human-altered habitats on the planet. The Dutch and German parts were inscribed on UNESCO’s World Heritage List in 2009, with the Danish part added in 2014.
The route never touches the country’s extremes, the Vaalserberg in Limburg or the Zuidplaspolder near Gouda, but it passes every process that shaped the land between them: river deposition, ice-age sand, peat, storm surges and centuries of deliberate engineering. The result is a small country whose map has been redrawn within living memory, which is why the size of the Netherlands depends on whether you count its water, and why its rivers still connect it so closely to the rest of the Rhine basin.