For marine conservationists, the Covid-19 pandemic has brought a silver lining in the reduction of potentially destructive human activity in sensitive biodiverse marine parks.

This is seen in popular tourist spots like Turtle Bay in Redang Island and Teluk Pauh in Perhentian island, which before this received more than 500 snorkelers a day - some of whom violate codes of conduct by touching the turtles, fish, corals and other marine life.

The crowded snorkelling fests also...