So inspired by DJ_Glad_Rappa’s overnighter, I decided to ride South Boundary to the top and back then do Centre Rd in reverse.
First off, in total agreeance that from the Gap Creek side is tough, riding up Centre Rd was a hard slog, didn’t walk anything but it’s much less fun than coming from the Ferny side.
Started from the Payne Rd entrance to South Boundary, straight off the bat there’s some climbing, rode up to the central split and continued, trail is a bit less maintained than the lower, still good surface, just lots of sticks and random detritus.
Not many pictures this time, this is the first climb from the Boundary/Centre split

It’s pretty similar to the bottom half of Sth Boundary, more undulations with 5 or 6 short steep pinches

Some undergrowth
There’s plenty of trail offshots, lots of breaks that’ll take you lots of places. After an hour or so I hit Scrub Rd bush camp.
There’s a pad to the left of the fire pit, this would be a good spot for a sub24hr/overnighter, thinking of doing a practice run up here loaded with gear.

Scrub Rd bush camp.
Rode with a rad XC dude for a bit here, he dropped some solid local knowledge about Dundas Rd and a few other things so I’ve options to sus out for more adventures. We parted ways as he went off to crush some other trails.
It’s probably 30 minutes to Mt Nebo Rd, then a quick 1km jaunt on the tarmac up to the cafe, I stopped and had a coffee and a feed. Was too busy talking to the cafe staff and forgot to ask for a refil, was down to 1 bidon by the time I had descended South Boundary. Took a left onto Centre Rd and went down then very slowly up, this was tough work, I had plenty of food but water was getting low, I shot across Mt Nebo Rd, down Bellbird Grove and re-filled at the dunnies in 1 bottle, I’ll post back if I’ve got violent diarrhea or cholera but it seemed okay. Did the short climb up the power line track then crossed onto Sutton Ct, flew down to the Lanita Rd rail trail then TT’d back to Ferny Grove station, refilled bottles and dumped the sus water, ate a mars bars then gently back-streeted my way home as I didn’t feel up to Samford Rd.
The second half of South Boundary was well worth the effort, it’d a bit of a hike (30km return from the Centre Rd split) but very fun.

Ended up 80k or so return with 2km of climbing