A visit to Alibaba's Xixi Park requires an appointment in advance. The specific appointment method is as follows:

1. Click "Contact Us" on the homepage of Alibaba's official website (www.alibaba.com) to enter the "Visit Appointment" page.

2. Fill in the relevant information on the "Visit Appointment" page, including the number of visitors, visit date, contact information, etc.

3. After submitting the appointment application, wait for Alibaba's relevant staff to contact you for confirmation.

4. After confirming the visit time, you need to go to Alibaba's Xixi Park and undergo identity verification and security checks at the entrance of the park.

It should be noted that a visit to Alibaba's Xixi Park requires an appointment in advance, and the appointment time is relatively tight. It is recommended that you plan your itinerary in advance and make an appointment as early as possible. At the same time, you must abide by the relevant regulations of the park during the visit, keep quiet and clean, and do not touch or move the park equipment and items at will.