Last week, I used TasMAP 5223 Blackmans Bay to help me navigate the South Arm / Cape Direction start of the walk. Stage 2, taking me northwards along the South Arm peninsula, will require a tiny portion of the same map. However, most of the Stage 2 walk will require TasMAP 5224 Taroona. Having said that, I believe it would be possible to walk  in the two ends of the South Arm peninsula without either map simply by asking locals to point them in useful directions.