If you want to book an activity for i.e. 5 persons, you can just click on the small plus next to the prices 5 times to choose the number of 5 tickets. Please pay attention to how the prices are indicated: If the price is stated as “per person”, you will need to buy a ticket for each person, if the price is stated as i.e. “for 2 persons”, the price already applies for 2 persons and you only need to buy one ticket.