How many tickets can I buy for Guangzhou Changlong Zoo with one ID card?

1 piece. According to the query of Changlong Tourism official website, you only need to fill in one ID card to buy one ticket, two ID cards to buy two tickets, and so on. People who buy one get one free only need to enter the park with the person who orders the ID card, and there is no need to fill in the ID card. Guangzhou Changlong Wildlife World, covering an area of more than 2, mu, has a large-scale primitive ecological park in the subtropical rain forest in South China, with many rare and endangered animals. The concept of protecting animals can be seen everywhere in the park, with many animal knowledge cards, 8 popular science classes and more than 2 popular science stations.