24 December 2010 at 6:32 am
#8572
I hadn't heard of the forts; googling found Macintosh Forts article on WIkipedia. Mentions six of the seven are in Frontier Closed Area.
The one outside FCA is at Pak Hok Chau, by Mai Po Nature Reserve entrance. I've often seen this one; in past walked around the grounds, which are now closed off.