Man Mo temple, in Central, which is known for its incense. This is a small temple near the market district. Its a very colourful building and full of the aroma of incense. There are candles burning in the ceiling and incense everywhere, if you don't mind smoke, its well worth a visit.
The other temple we went to was Sik Sik Yuen Wong Tai Sin Temple. This was a very impressive temple, large, very popular, with lots of statues and colourful buildings, near the subway and has a nice garden round the back. Unfortunately the day we visited it was stiflingly hot, which made it difficult to shamble about the place, fortunately there's a mall next door with air conditioning.
Also, some of the temple is undergoing repairs at the moment, so not all of it is open, but even so, it was pretty big.
