Alex visits Selingan, also know as Turtle Island.
She witnesses the full life cycle of the mother sea turtle - from laying eggs on a beach at night to the emergence of the hatchlings and their race for survival to the open seas
Alex returns to Mantanani Island and reconnects with the team from Reef Check Malaysia to see how plastic pollution is threatening the marine environment. She also finds out what the island community is doing to tackle the pollution
Alex and scientist KC take a walk around the fish market in Sandakan where they come across baby sharks and stingrays for sale.
KC explains the importance of sharks to a healthy marine ecosystem and how her research could improve the sustainability of the fishing industry and save sharks and rays.