Question: the aborignal group who traditionally lived in the area contiguaous with Coffs Harbour, New South Wales speak what language?

Context paragraphs:
Yaygir people: The Yaygir were an Australian Aboriginal tribe who traditionally lived in and around Coffs Harbour, New South Wales.

Nana Glen, New South Wales: Nana Glen is a small village in New South Wales, Australia, located 25 km inland north-west of Coffs Harbour in the City of Coffs Harbour.  It is located on the Orara Way and at the juncture of two main roads, one leading to Lower Bucca.  The Orara Way (Formerly known as Coramba Road) is the main thoroughfare through the township and is an alternative route between Grafton and Coffs Harbour.  Nana Glen is situated between the township of Coramba and Glenreagh.  In the 2011 census , Nana Glen was reported in conjunction with the nearby towns of Coramba and Buccahad, with a combined population of 3,687 people.

2011 Rally Australia: The 2011 Rally Australia was the 21st Rally Australia and the tenth round of the 2011 World Rally Championship season.  The rally took place over 8–11 September, and was based in Coffs Harbour, a coastal city in the New South Wales state of Australia.  The rally was also the fifth round of the Production World Rally Championship.  Rally Australia returned to the WRC calendar after a year's hiatus, and after demonstrations marred the 2009 running of the rally, held north of Coffs Harbour in the Northern Rivers area.  Residents' concerns for the event meant that the rally was moved for the foreseeable future to Coffs Harbour.

Kumbainggar language: Gumbaynggir language (also spelled Gumbaingari, Kumbainggar, Kumbaingeri, Gambalamam, and also called Baanbay) is an Australian Aboriginal language.  It is spoken by the Gumbaynggirr, who are native to the Mid North Coast of New South Wales.

Gumbaynggirr: Gumbaynggir (also 'Kumbainggar') are an Australian Aboriginal group who traditionally lived in the area contiguous with Coffs Harbour, New South Wales.

Coffs Harbour High School: Coffs Harbour High School is a comprehensive secondary school in Coffs Harbour, New South Wales, Australia operated by the New South Wales Department of Education and Training.

Coffs Harbour Airport: Coffs Harbour Airport: (IATA: CFS, ICAO: YCFS) (formerly ICAO code of YSCH until November 2007) is the only airport located in and serving the regional centre of Coffs Harbour, Australia.  The airport is located near Boambee, south of Coffs Harbour.  Coffs Harbour Regional Airport is one of the largest and busiest regional airports in New South Wales, handling numerous types of aircraft.  The airport is currently serviced by four airlines QantasLink, Virgin Australia,

City of Coffs Harbour: The City of Coffs Harbour (also known as the Coffs Harbour City Council) is a local government area in the mid north coast region of New South Wales, Australia.  The area under administration is 1175 km2 , expanded in 2004 to take in parts of the former Pristine Waters local government area.

Coffs Harbour International Stadium: The Coffs Harbour International Stadium (known as the C.ex Coffs International Stadium under a sponsorship arrangement) is an Australian stadium located in the coastal city of Coffs Harbour, New South Wales.

Coffs Harbour Senior College: Coffs Harbour Senior College is an Australian school in Coffs Harbour, New South Wales.  It is several kilometres south of Coffs Harbour on Hogbin Drive in an area which is becoming the centre of population distribution for the greater Coffs Harbour area.  The college is a partner with TAFE and Southern Cross University on one site known as Coffs Harbour Education Campus (CHEC).  The college provides opportunities for students in Years 11 and 12 to gain their Higher School Certificate.

Supporting paragraphs: Kumbainggar language Gumbaynggirr
Answer: Gumbaynggir language