Hi Reei:
That’s good; hope you enjoyed Tai Po Kau.
I’ve done short piece on taking toddler on Cheung Chau:
Walking in southern Cheung Chau with toddler and pushchair
Circuit of the Peak, and visit to gardens on Mount Austin Road (article on this site) may be good.
Walking around Mui Wo, inc to Silvermine Waterfall (info here too)
Shing Mun Reservoir
From Tin Shui Wai Station, there’s good village trail – Ping Shan Trail (also on this site)
Shek O, HK Island, a good spot to visit
Po Toi Island
Peng Chau
Tung Ping Chau – further afield, but mostly flat; tho ants can be a nuisance
– these are ideas occurring to me just now.
Good if you can report back!
Martin