It's still cost-effective to go to Xiamen Water Park in the evening.

Does the subject want to ask "why is it cost-effective to go to Xiamen Water Park in the evening?"

1, there are fewer tourists in Xiamen Water Park at night, and the number of people entering the park is relatively small, so you can enjoy cheaper fares by buying a group ticket.

2. Xiamen Water Park will hold special night activities and light shows at night, which will increase the special experience of playing at night and be worth it.