Rottnest Island's dark past will finally be acknowledged by the West Australian government, with plans to transform the old Aboriginal prison site into a cultural centre.

27 Nov 2015 - 4:01 PM  UPDATED 27 Nov 2015 - 4:01 PM

'The Quod', where Aboriginal people were jailed in cramped conditions for over a century and which was subsequently used as tourism accommodation, will be developed into a museum and entry point to the Wadjemup Aboriginal Burial Ground.

The burial ground is believed to hold more than 370 graves, making it the nation's largest unmarked Indigenous burial site, according to a state government spokesman.

Rottnest Island Authority chief executive Paolo Amaranti said he hoped culturally appropriate acknowledgement of the site and its sad history could be the catalyst for genuine recognition and healing.