Put the greatest circle The Netherlands on your palmares!

Cycle the largest circle of the Netherlands (635km+) during the longest day/weekend of the year — from sunrise to sunset.

An epic self-supported challenge across seven provinces, featuring a unique mix of landscapes: from the German border in the east to the North Sea coast in the west.

Including the Round Package, plus extras:
✓ 4 checkpoints along the way to refuel
✓ Route guide with water points, sleeping spots, and super handy ride schedules
✓ You will receive the GPX route from us (of course)
✓ Includes a fun keepsake: the Rondobox including the unique NL cycling pin! 🎁
✓ Live tracker, so your fans can follow you





✓ Ride and support: KiKa — Every child cancer-free 🙏🧡

Count me in!Save for later ♡
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ps. Can't make it on the event date?
Go on another date with Rondopack

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EVENT-RULES

It is a challenge, not a competition, where participants must always adhere to the regular traffic and access rules. It is allowed to ride in groups of up to 10 people per group. Participants from outside the Netherlands should inform themselves about the Dutch traffic rules.

Participants must wear a helmet. Recumbent handlebars are allowed, but for safety, please do not use them when cycling within a bike length behind someone. Fully enclosed recumbent bikes / velomobiles are not allowed. It is permitted to use an e-bike / bike with electric drive, if indicated in advance via mr@granrondo.cc and approved by the organization.

Participants who are provided with a live tracker must ensure that the device is carried with them at all times, is sufficiently charged, and remains switched on for the duration of the event. It is not allowed to pass the tracker to third parties. The tracker must be returned at the designated finish location after the event. In case of loss, theft, or damage, the Participant is responsible for the reported costs. 

The nature reserves along the route are limited or completely inaccessible between sunset (10:00 PM) and sunrise (5:20 AM). The gravel route goes over the North Sea beach between Castricum and Bergen aan Zee. It is not allowed to cycle on the beach during the day between 10:00 AM and 7:00 PM. Between 10:00 AM and 7:00 PM, you must take the dune route.

Are you stopping early? Report it as soon as possible by sending a private message on WhatsApp to +31620332050 or via the WhatsApp group or an email to mr@granrondo.cc.

Participants must bring a completed and signed copy of the participant declaration when checking in (download here). When checking in, they must also show a valid identification document.

Inbegrepen in 't deelnamepakket:
✓ 4 checkpoints onderweg om bij te tanken
✓ Rondegids met waterpunten, slaapplekken en superhandige ritschema’s
✓ Je krijgt van ons de GPX-route (uiteraard)
✓ Inclusief leuke herinnering: de Rondobox inclusief de unieke NL wielerpin! 🎁
✓ Livetracker, zodat je fans je kunnen volgen


View full details
 

Route

Road route ⟲700km ⇗1340m

Gravel route ⟲750km+ ⇗1250m

The largest circle in the Netherlands - Based on 'The largest circle in the Netherlands' by Quinda, but even a bit rounder and more fun!

An iconic round, perfectly mapped out by hand into a super fun, bike-friendly route full of beautiful highlights and a unique circle on the map. 🚴‍♂️✨

To put this round on the map, you make an impressive loop through the Netherlands. In seven different provinces, you traverse a variety of beautiful landscapes between the German border on the east side and the North Sea coast on the west side.

It is a legendary round with famous (cycling) highlights, including Kopje van Bloemendaal, the VAM mountain, Montferland, Dwingelderveld National Park, Drents-Friese Wold, and over the famous beach boulevard of Egmond.

You cross various rivers and other waters, including the IJsselmeer/Wadden Sea via the 32km long Afsluitdijk (bike bus due to construction work). At Doornenburg-Pannerden, you take the ferry. At Ameide and Tiel, you have the option to take a ferry for the perfect circle, or to cycle a bit to a bridge further on. After at least 635km on the pedals, you return to the starting point. The circle is complete!

Narrow tires? The route goes entirely over paved roads.

Gravel bike? Take the surprising gravel route with approximately 40% unpaved/gravel sections.

Longest Day(s) Challenge

Cycle the largest circle of the Netherlands (635km+) during the longest day/weekend of the year — from sunrise to sunset.

An epic self-supported challenge across seven provinces, featuring a unique mix of landscapes: from the German border in the east to the North Sea coast in the west.

Including the Round Package, plus extras:
✓ 4 checkpoints along the way to refuel
✓ Route guide with water points, sleeping spots, and super handy ride schedules
✓ You will receive the GPX route from us (of course)
✓ Includes a fun keepsake: the Rondobox including the unique NL cycling pin! 🎁
✓ Live tracker, so your fans can follow you

✓ Ride and support: KiKa — Every child cancer-free 🙏🧡

Inbegrepen in 't deelnamepakket:
✓ 4 checkpoints onderweg om bij te tanken
✓ Rondegids met waterpunten, slaapplekken en superhandige ritschema’s
✓ Je krijgt van ons de GPX-route (uiteraard)
✓ Inclusief leuke herinnering: de Rondobox inclusief de unieke NL wielerpin! 🎁
✓ Livetracker, zodat je fans je kunnen volgen

🕒 PROGRAM & INFO

Longest Weekend Challenge
On Friday, June 19, your adventure begins in Schoorl or Tiel at 5:00 PM. Exactly when the weekend starts for most. The mission: finish on Sunday, June 21, before 10:04 PM. The weekend challenge is done in 3 stages where you only ride when the sun is above the horizon: Friday approximately 100km, the remaining 535km you divide over Saturday and Sunday, for example, 300km and 235km.

Longest Day Challenge
On Sunday, June 21, your adventure begins in Tiel at 12:00 AM. The mission: finish before 10:04 PM — sunset on the longest day of the year.
And of course, it's no problem if you take a little longer.

Start Locations / Checkpoints
CP South: Body Dynamics / Cycling Sports Center de Betuwe - Tiel (Start/Finish Longest Weekend / Day)
CP West: JOOP - Schoorl (Start/Finish)
CP North: Fitconcept - Grou
CP East: Cycling Café Paris is still far - Doetinchem

Choose your own start and finish location: CP South or CP West.
Route choice: Road or Gravel (±35% offroad).
Solo, with your cycling friends, or join a group.

Registration is open from December 1, 2025, until June 1, 2026, at the latest.‎

Questions? Email to mr@granrondo.cc

Count me in!

🌟 Rondoguide

Detailed guide with everything for a successful cycling adventure.

✓ Instant access to the digital Rondoguide and GPX in your account.
✓ Routes in Wolf Maps, GPX, and Komoot.
✓ Unlimited route updates — always the most recent version.
✓ Recommended cafés and restaurants with links to Google Maps.
✓ Water points to fill your bottles.
✓ Timetables for multiple starting points and daily schedules.
✓ 10% discount on everything at Kalkman.cc

✓ Timetables for planning your ride.
✓ Information about the ferries on the route and how to get across the Afsluitdijk by bicycle bus.

Round-up

What points of attention are there on the route?

Checkpoints - In every direction, there is a checkpoint. To keep it practical and logistically feasible, you can only start at Checkpoint South (Tiel) and Checkpoint West (Schoorl). Participants receive a stamp card to collect a stamp at each checkpoint. During the event, the checkpoints can be recognized by the GranRondo banner.

The journey is self-supported. However, we will provide you with a little extra energy at the start and the checkpoints. And for a fee, more food/drinks will be available. It is not possible to stay overnight at the locations. At the starting locations, you can leave a bag during the event, but this is at your own risk. The organization/locations are not responsible for items that get lost or forgotten.

Narrow bands? The route goes entirely over paved roads, with about 3km of gravel in the Drents-Friese Wold where you can also cycle around, but then you will miss a very beautiful part of the Netherlands!

The gravel route contains approximately 40% unpaved/gravel sections spread over the route.

Longest Weekend Challenge starts in Schoorl – Due to ferry schedules, the gravel route is approximately 20km longer, so in total approximately 670km.

Details / specifics on the route are in the Rondegids that you receive with the purchase of the Ronde package.

You have registered. Where can you find the GPX?

Here are the steps to find the gpx:

  1. Go to account.granrondo.cc
  2. Enter the exact same email address you used to place the order.
  3. You will receive a verification code by email that you need to enter.
  4. In your account at Rondogidsen, you will see the Rondo you purchased. The GPX is on the Rondo guide page.

Can I also exchange or transfer my ticket?

No refunds are possible after the purchase of tickets.

If you are unable to attend this event, you can go "On an Adventure Yourself" on another date with the received Round Guide and route files. Other event provisions and extras (such as drinks) will be forfeited, without refund.

Tickets are personal and non-transferable to others.

How much of your donation goes to KiKa?

100% to KiKa
If you add this round to your start list, you can make a voluntary contribution. The entire amount will go to KiKa.

Events / Challenges
Do you want to give even more motivation / meaning to your participation for the good cause? Then you can create a fundraising page for KiKa to collect donations from your friends, colleagues / network, and family.

Other questions?

Go to Customer Service

or email to mr@granrondo.cc


Count me in!Save for later ♡

Other date?

Can't make it on the event date?
Go on a self-guided adventure with Rondoguide & GPX.

Choose your own date, starting point, and company. The prep is done — you just need to ride and enjoy! 🚴‍♂️✨

✓ Round guide and GPX available immediately
✓ Including routes and gravel routes.
✓ Unlimited route updates
✓ Original gift for your cycling friends 🎁

View Rondo Pack