[6] From 2004 onwards, a network of stoat traps has been created on the island, connected via tramping tracks cut through the bush.

The removal of stoats will provide significant protection for native species already present on the island, such as the Fiordland crested penguin, New Zealand falcon, kākā, kiwi and kākāriki.

[7] The absence of rodents allows an abundant population of native invertebrates to thrive, including the critically endangered knobbled weevil.

A search by DoC rangers two years later found twelve unbanded rock wrens, confirming that natural breeding started to occur shortly after the translocation.

[10] One of the largest relocations was the transfer of up to 60 yellowheads (mohua) caught in the Dart Valley and flown to Secretary Island to establish a population of these rare birds in a rat-free environment.

A waterfall plunging from Secretary Island into the bay has been used in the past as a handy supply of fresh water.

Doubtful Sound tour boats routinely travel through this channel, providing the public with an easy way to see this remote island up-close.

A radio repeater is located on Mt Grono, the highest point on the island, to provide communication coverage for boat operators in and around the Fiordland coast.