Last week I just came back from an island trip to Ranoh with Lincoln and a couple of friends. Ranoh island is a small isle off Galang Baru island (and Batam), which is accessible by the Trans Barelang bridge, followed by a 30 minute ferry ride from a jetty. For the whole of this first part I just used my Sony RX100 Mk 3.
Screenshot from Google Map, Ranoh Island, there you are