We did a coupe of moderate routes on the west side of Geryon a couple of summers ago. Walked in via a rough creek line that heads north from the track from Pine Valley hut to Acropolis. There was good access to water but was a bit claustrophobic. There's a good rock bivy up near the saddle between Geryon and Acropolis. Harder to find water though.
Finding the base of some routes can be challenging. There's definitely some shattered rock about, we cut both our ropes from fallen rock.
Amazing place if you get good weather though. We used the Select Tasmania guide, which was pretty good.