This day cycle is one of three that I intend to lead to visit the ACT Geoheritage sites that are listed by the Geological Society of Australia (ACT Division) and can be found at https://gsa.org.au/Public/Public/Geoheritage/ACT_Sites___Maps.aspx. The sites to be visited are those to the east of Northbourne Avenue and south of Adelaide Avenue as shown on the map at the website. Not all of the sites are in good shape, but we will visit them anyway. Because of access issues, we will not visit either Mugga Mugga Quarry or Parliament House. Cycling will be a mix of bitumen, gravel and some short sections off-track. There are a couple of steep hills that may need to be walked (both up and down). A mountain bike is preferred and e-bikes are acceptable, but the terrain is not suitable for light-weight road bikes. Most cycling is not on trafficable roads but we do need to ride on some streets. Helmets and a high-vis vest are compulsory. You will need to bring water and lunch. A bike lock is required because we will leave the bikes and walk to at least one site.