Best lakes around Castricum are situated within a diverse natural landscape in the province of North Holland. The region features dune lakes, infiltration areas, and larger water bodies, offering various recreational opportunities. These areas are often part of extensive nature reserves like the Zuid-Kennemerland National Park and the Noordhollands Duinreservaat. The natural environment provides habitats for diverse wildlife and supports natural water purification processes.
Last updated: May 3, 2026
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beautiful landscape
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The water that is pumped into the dunes at De Kwal comes from the IJsselmeer. The water is pumped from the IJsselmeer at Andijk, purified, and transported to Heemskerk via a 52 km long pipe. There it is filtered again and is allowed to enter the dunes at 'de kwal'. There the water slowly seeps into the soil and is naturally freed of bacteria and viruses. After at least 30 days, the clean water is pumped up from a depth of 40 metres, freed of iron and lime and the drinking water is suitable for consumption. 800 litres per second Every second, the daily consumption of 6 people flows out of 'de kwal'. That is approximately 800 litres of water per second (2850 m3 per hour). On an annual basis, this amounts to 25,000,000,000 litres of water.
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Picturesque landscape, there is a lot to discover on, in and next to the water.
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A beautiful water-rich landscape that also functions as a drinking water supply.
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Source in the dune reserve. Always bubbling. The water treatment of North Holland
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Access to the dune area requires a valid ticket. This is available at the vending machine at the entrance to area.
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Beautiful lake landscape in the dune area. The water is then used as drinking water in e.g. Wijk aan Zee.
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For swimming, 't Wed Lake and Oosterplas are excellent choices. 't Wed Lake, located in Zuid-Kennemerland National Park, features a sandy beach and shallow areas perfect for children. It's an official swimming area with monitored water quality. Oosterplas, also in the same national park, offers a natural swimming area with a 150-meter long beach, providing a serene escape.
The region offers fantastic birdwatching opportunities. Vogelmeer, within Zuid-Kennemerland National Park, is known for its diverse birdlife and has an observation hut on its south shore. Hoefijzermeer, located in the Noordhollands Duinreservaat, is home to a cormorant colony and features a birdwatching hut called 'Boetje van onze Kees' and a large wooden screen for photography.
Yes, the Infiltration Area in the Dunes of Castricum plays a crucial role in the natural drinking water purification process for North Holland. Similarly, De Kwal Water Outlet is where large amounts of water are pumped into the dunes for purification, creating impressive water-rich landscapes.
Beyond diverse birdlife at Vogelmeer and Hoefijzermeer, the surrounding nature reserves like the Noordhollands Duinreservaat are home to various animals. You might encounter Highland cattle and horses, as seen near the Highland cattle and horses in the Noordhollands Duinreservaat and Pond and Highland cattle in the Noordhollands Duinreservaat highlights. The dunes also offer opportunities to spot unique flora and fauna.
't Wed Lake is well-equipped with a toilet building and is part of a diverse landscape with rolling sand dunes and coastal forests. Oosterplas, while offering a beautiful natural swimming area, does not have facilities like toilets or catering directly at the lake, emphasizing its serene, natural setting.
The area around Castricum's lakes is excellent for various outdoor activities. You can enjoy extensive hiking and cycling routes through the dunes and forests. For more structured activities, there are numerous road cycling routes, MTB trails, and gravel biking options. You can find detailed routes in the Road Cycling Routes around Castricum, MTB Trails around Castricum, and Gravel biking around Castricum guides.
While the dune lakes are primarily for swimming and nature observation, larger lakes like Uitgeestermeer and Alkmaardermeer, easily accessible from nearby towns, are ideal for boating activities. You can rent canoes or boats to explore their expansive waters and moor at various marinas, offering broader opportunities for sailing and other water sports.
For swimming, the period between April 1 and October 1 is ideal, as water quality at official swimming areas like 't Wed Lake is monitored during this time. Generally, the warmer months offer the most pleasant conditions for water activities.
While direct facilities at some dune lakes are limited, the surrounding areas and entrances to nature reserves often have options. For instance, near the Hoefijzermeer, you can visit the Visitor Center De Hoep, which might have amenities or information on nearby cafes. The towns surrounding the nature reserves also offer various dining choices.
The dune landscape around Castricum is highly varied, featuring sandy areas, heath, and forests. This diverse terrain, especially within the Zuid-Kennemerland National Park and Noordhollands Duinreservaat, creates unique ecosystems. The presence of dune lakes and water infiltration areas further enhances the landscape, making it a dynamic environment for both nature and recreation.
Rules regarding dogs can vary within the nature reserves like Noordhollands Duinreservaat and Zuid-Kennemerland National Park. It's generally advisable to check specific regulations for each area, as some parts may require dogs to be on a leash or may restrict access to protect wildlife. Information on PWN dune cards and dog rules can often be found at visitor centers or on local authority websites.
Many lakes, especially those within the Zuid-Kennemerland National Park and Noordhollands Duinreservaat, are accessible after a walk or bike ride through the dunes. Public transport options from Castricum station to the entrances of these reserves are available, and parking is typically provided near major entrances. Specific parking and public transport details can be found on the websites of the respective nature reserves.


Still not found your perfect lake around Castricum? Check out the guides of these regions to see even more beautiful places.