Update in the NParks website: "Temporary closure notice - The Singapore Land Authority (SLA) had closed part of St John's Island from now till the end of the year arising from the asbestos found in the campsite area. As investigations and works to remove the asbestos are ongoing, the St John's Island trail and the Marine Park Outreach and Education Centre and St John’s Island Trail will be closed until further notice. We seek your understanding for the inconvenience caused."
St John's Island houses the Marine Park Public Gallery, and the western shore of St John's is part of the Marine Park. You can join a free guided tour every first Sunday of every month. Led by volunteers, the 2.8 km St John’s Island Trail has 15 stations highlighting the diversity of flora and fauna as well as the island’s colourful history.
You can also do the trail on your own, download the DIY trail e-guide or grab a copy of the DIY trail guide at the Sisters’ Islands Marine Park Public Gallery.
More details and registration online.