south-east tasmania
The areas defined as Oyster Bay and Little Swanport roughly coincides with the area defined as Paredarerne in the AIATSIS map of Aboriginal Australia.
Oyster Bay language data, along with historical sources from all Tasmanian language varieties form the basis of palawa kani language. The languages and dialects records are sparse.
Oyster Bay and Big River have 85% of vocabulary in common and are very likely to be dialects of a single language.