The centre is in Chai Wan, about 5-10 minutes' walk from the MTR. In classic HK fashion, the appointment is a multi-step process. First of all, you register at the counter (1st floor) which takes about 7 or 8 minutes, as the lady prints off loads of slips of paper and sticks laminated things into your health record book. Next you (well, your child) goes to get weighed and measured in Room 1. Then you wait for a bit. Then you go to Room 3 and the nurse (super lovely nurse called Mei Yi) tests their vision and hearing. Then you wait for a bit. Then you go to Room 10, swap your laminated number for a totally different laminated number, and eventually see the dr. He checks that the kids have two arms and two legs, asks you about medical history, that's it. The whole thing took about 50 minutes.
The only things in the Health Centre that are less than 30 years old are the automatic doors. They're new and swish. But I'm willing to bet that the posters have been there a number of decades. Weirdly the chairs struck me as very Hong Kong - more specifically, the fact that none of them matched and they had little handwritten signs sellotaped to them.
The boys both "passed" as the nurses kept telling us. However, Felix is tall, so we got this helpful advice.