Sandringham is in the heart of the Bayside Council Area and contains an amazing number of interesting and cultural walks.
Check out the Coastal Trail Map - https://www.bayside.vic.gov.au/sites/default/files/2021-09/bayside_coastal_trails_map_1.pdf
If you are into interesting walks then have a look at these four coastal walks documented here - https://www.bayside.vic.gov.au/services/trees-parks-and-beaches/coastal-trails
If you are into walking and art then check out the coastal art trail at https://www.bayside.vic.gov.au/sites/default/files/2021-10/coastal_trails_art.pdf
or if you wish to find out more about Australia's indigenous history then you will love this walk - https://www.bayside.vic.gov.au/sites/default/files/2021-10/coastal_trails_indigenous.pdf
or even the European history and their love of beaches - https://www.bayside.vic.gov.au/sites/default/files/2021-10/coastal_trails_history.pdf and not to mention Brighton's bathing boxes only a short walk from SYC - https://www.visitvictoria.com/regions/melbourne/see-and-do/history-and-heritage/heritage-buildings/brighton-bathing-boxes
or try out some of the other walks of Bayside:-