Fully Vaccinated Travellers Will Soon Be Able To Visit South Australia And Singapore October 27, 2021 Both Singapore and South Australia have announced their borders are reopening for fully vaccinated travelers. Singapore is extending its quarantine-free vaccinated travel lane scheme to Australian citizens and residents from November 8. From November 23, fully vaccinated domestic travelers in Australia will also be able to visit South Australia. Unvaccinated Aussies will not be able to travel to Singapore, and will have to go through an approval process if they are wanting to visit South Australia, along with 14 days quarantine.