I am not Catholic, but when we walked by the very popular St. John's Episcopalian church down the…read morehill from the Peak Tram, we asked where there might be a Catholic Church. My friend who was visiting from the US is Catholic and likes to visit a church or two in the different cities of the world she travels to. The lady in the gift shop at St. Joseph's said that the Cathedral of the Immaculate Conception was one of the most beautiful churches in all of Hong Kong.
Although tucked behind other buildings and some construction, so not visable from street level of Caine Street itself at all, when we found the walk way to the church, simply magnificent! Being a secular humanist at best, I cannot speak to any custom, traditions or history of this space or the Catholic church, but it really is a lovely church. Based on what I read, it is about 120 years old. It is really large. We also discovered that they do not have gift shop on sight and when we inquired, they referred us to the Grand Building, 3/F on Connaught Road for the gift shop (we did not go there, but in their limited English, this is what the nice staff wrote down and told us).