This $66 Aussie escape has been named the nation's most affordable day trip

Key points

• Williamstown in South Australia has been named the most budget-friendly day trip in a national affordability index. A day out for two people costs about $66.04, excluding accommodation.
• The study by car insurance provider ROLLiN' assessed 73 regional destinations on fuel, food, entry fees and attraction costs. McLaren Vale ranked first for overall value, while Geelong, Wollongong, Katoomba and Kalamunda rounded out the top five.
• Williamstown is about 20 minutes' drive from Hentley Farm in Seppeltsfield, a restaurant in the state's Michelin Guide.