I've been to the Brois St one, and it's amazing - to think that it's hidden away, not signposted, but freely available to the general public. They run regular workshops on pruning etc.
The most amazing part is that it doesn't appear to get vandalised or have the harvest taken - maybe because (until now) no-one knew it was there.
11 acres (4 in QEII Covenanted native bush), 15 sheep, 2 beefies, large vege gardens and a goat, and still no dog!
Oh, and uncountable wild birds - including fantails, swallows, yellowhammers, morepork, magpies, hawks, pukekos, and even quaill, pheasants and rainbow lorikeets [][] Not to mention possums, hares, rabbits, rats...