I last did it in 98, too long ago for property owner details. Yes it is Nandi Rd, intersection with Ditley Fire Trail. Will have to sweet talk are way through the property. Last time I did it we left the cars off the property on public road and walked a short distance across the property to the river. Should do the same to keep owner on side this time.
Getting back to Canberra by 5pm is not achievable. Last time we left Canberra at 5am, on water at 10 after the car shuttle, off water 3.30pm, back in Canberra just before 8pm. A long day but we'll worth it.