Sea Otter Bike Expo is being held at Mt Stromlo in Canberra over the first weekend in October, with boatloads or MTB, Gravel, and Road rides being run from 30th September to 4th October. Apparently this is some kind of big deal, and the first time being held in Australia.

Click on https://seaotteraustralia.com.au/ and hit the Ride/Stay link for a list of ride options.

This includes Fitz's Challenge, which now has 7 ride distances on offer, on Sunday 3 October, and closed-road rides around the Uriarra-Cotter loop ("Around the Mount").