Bastion Cascades

As noted here, I'm hoping to get along to Bastion Cascades this weekend. It looks like an interesting walk, the falls are supposed to be nice, and there are apparently some huge rock overhangs along the track which I'm keen to see.
Anyway, I'm after any information people can give me about the walk, which looks like you can go via a direct route, or the Stone Hut track. Some have said the track is a little hard to follow, I don't know if I should be bothered by this or not. Also, if anyone knows anything about the "Crowdens Croft" mentioned on this website, I'd be interested to hear what you know about this unmarked diversion.
EDIT - It looks like Stone Hut / Bastion Cascade can be done as a circuit. 5-6hrs according to the Forestry website.
Anyway, I'm after any information people can give me about the walk, which looks like you can go via a direct route, or the Stone Hut track. Some have said the track is a little hard to follow, I don't know if I should be bothered by this or not. Also, if anyone knows anything about the "Crowdens Croft" mentioned on this website, I'd be interested to hear what you know about this unmarked diversion.
EDIT - It looks like Stone Hut / Bastion Cascade can be done as a circuit. 5-6hrs according to the Forestry website.