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To participate in our programs, you must agree to our terms and conditions and validity statement.


General terms and conditions individual bookings ASP Adventure   

1.   Age and height restrictions

To participate in our cave biking programs, a minimum height of 1.40 meters (55 inches) is required. It is not possible to ride along on the back of a cave bike or to participate in the program with your own bicycle.

2.   Prohibited

Use of alcohol before and during the program is strictly prohibited. ASP Adventure takes no responsibility if participants have consumed alcohol prior to the program. ASP Adventure has the right to refuse participation in the program to participants who are found to have used alcohol beforehand. In this case, refused participants are not entitled to a refund of any monies paid.

It is prohibited to smoke in the caves.

3.    Reservation

After making a reservation through our online booking system, you will receive a confirmation by e-mail.

After making a reservation by phone, which is considered binding, you will receive a confirmation by e-mail. You must fill out the registration form in the Annex and bring it with you on the day of your activity. 

Registration at our location: At least one adult (at least 18 years old) must be present upon arrival at our location at all times in order to sign up and register the persons that you have booked for. Regardless of that person’s own participation, the adult who has registered the persons has the legal responsibility for them.

4.   Cancellation

Should you wish to cancel your booking, we ask you to contact us by phone as soon as possible. You can contact us by phone from Tuesday to Friday (between 09:00-12:30 and 13:30-17:00) and on Saturdays and Sundays (10:30-17:00), please contact our reservations department or business location by phone + 31 (0) 43 604 06 75. We cannot be reached by phone on Mondays.

5.   Safety and responsibility

ASP Adventure guarantees the safety of the materials and fuses during the program. It goes without saying that it is obligatory to follow all instructions from our staff. If the instructions are not followed and/or insufficiently met, ASP Adventure can not accept any responsibility.

Although all our programs are recreational, they do have a sporty character. ASP Adventure will not be liable in the event of any injury. Participation will always be at your own risk. When making reservations for a cave program, bare in mind that the corridors in the cave have an average height of 1.70 meters (66.9 inches). Depending on your height, it might be possible that you have to bend over more and could easily bump your head. Participants with back and neck problems should take this information into consideration before participation. We strongly recommend you to inform us about any health problems in advance, so that our staff can keep them in mind.

6.   Reservation of time blocks

If participant(s) arrive too late for the start of the reserved program (for the correct starting time, please see our confirmation), ASP Adventure cannot guarantee that the reserved program will be fully executed. Because of the planning of other groups and/or materials and/or guidance it is not possible to be flexible regarding the agreed time schedule. Usually, this means that you will not be able to participate in the program at that time. Our staff can discuss alternative options with you, so that you can participate another time.

7.   ASP Adventure and VeBON membership

ASP Adventure is a member of the VeBON (the Association of Outdoor Enterprises in the Netherlands, for quality outdoor companies). Because of this the terms and conditions of “VEBON”are always applicable. (VeBON terms and conditions are available on request).


Persons in normal healthy conditions are able to participate in any of our programs. It is up to the participant to judge if his/her condition is sufficient to participate. ASP Adventure urges participants to communicate any medical or physical conditions which might impair or endanger participating to our staff prior to the activity. ASP Adventure will check this information with the participants involved prior to the program. ASP Adventure withholds the right to deny participation for persons concerned, or strongly advice against participation should the conditions possibly endanger the person concerned or others participating.

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Should you select to pay online you will be redirected to a secure Mollie payment page. After completing the payment you will be redirected back to our page. Please do not close this screen. Should you want to pay cash, please select Voucher / Cash.
If you are unable to pay online, please contact us via telephone at +31 (0)43 60 406 75 and we will be glad to assist you.