Opened in July 2015, the Sisters’ Islands Marine Park Public Gallery on St John’s Island complements the outreach programmes at the Sisters’ Islands Marine Park. The Public Gallery features the rich marine biodiversity in Singapore's waters and provides an overview of the Sisters' Islands Marine Park. A seminar room and teaching lab for school and community groups are also provided as extensions to the Public Gallery.

New exhibits have been added to the bigger and enhanced Sisters’ Islands Marine Park Public Gallery. Visitors can explore a mangrove mesocosm and other new displays. The outdoor aquarium is now temporarily closed for system refresh. 

Directions to the Public Gallery from St. John's Island Jetty

Groups larger than 20 planning to visit the public gallery will have to email for booking. 

Do note that the gallery opens for half a day (until 12pm) on the eve of public holidays and closes on the day of public holiday. Gallery opening hours are as follows: 

Date	Holiday	Gallery Opening Hours
11 November 2023 (Saturday)	Deepavali Eve	10am to 12pm (Half day)
12 November 2023 (Sunday)	Deepavali Day 1	Closed
13 November 2023 (Monday)	Deepavali Day 2	10am to 4pm (Usual opening hours)
8 December 2023 (Friday)	-	Closed
24 December 2023 (Sunday)	Christmas Day Eve	10am to 12pm (Half day)
25 December 2023 (Monday)	Christmas Day	Closed
31 December 2023 (Sunday)	New Year's Day Eve	10am to 12pm (Half day)
1 January 2024 (Monday)	New Year's Day	Closed
9 February 2024 (Friday)	Chinese New Year Eve	10am to 12pm (Half day)
10 February 2024 (Saturday)	Chinese New Year Day 1	Closed
11 February 2024 (Sunday)	Chinese New Year Day 2	10am to 4pm (Usual opening hours)
28 March 2024 (Thursday)	Good Friday Eve	10am to 12pm (Half day)
29 March 2024 (Friday)	Good Friday	Closed
9 April 2024 (Tuesday)	Hari Raya Puasa Eve	10am to 12pm (Half day)
10 April 2024 (Wednesday)	Hari Raya Puasa	Closed
30 April 2024 (Tuesday)	Labour Day Eve	10am to 12pm (Half day)
1 May 2024 (Wednesday)	Labour Day	Closed
21 May 2024 (Tuesday)	Vesak Day Eve	10am to 12pm (Half day)
22 May 2024 (Wednesday)	Vesak Day	Closed