Best Street Map of Cheung Chau?

any recommendations for a large scale detailed map of cheung chau, with street names and the like. best i’ve found so far is in the back of HK Almanac, although it’s far from what I;m looking for. It has streets marked on it, but not many street names. it’s also small. I might consider running it through a color photocopier and enlarging it to say A3 size, but is there a better option?