Generally, adding participants is possible, as long as there are still free capacities for the activity you have booked. 

How to easily add a participant to your booking?

If you have booked a group activity:  

• Go to our website www.checkyeti.com  and simply book the same activity on the same date and time and under the same name (if possible). This way, the provider will know that you belong together.

If you have booked a private activity: 

•  In this case, please directly contact us here: Click here to send us a contact form