It is not necessary to reserve, you can buy your tickets at the entrance.
You can buy it in the 2 ways online or in person at the entrance, but online you are safe and you can also find out about the restrictions of the place, schedules ect...
So you don't lose the trip buy it online... I went on a Saturday I missed the trip. There were no tickets
I went and I couldn't buy it, you have to get it online
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