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Granite Island at Victor Harbor , South Australia continues to offer guided tours at dusk , despite its colony dropping from thousands in the 1990 s to dozens in 2014 .
 Granite Island, Victor Harbor, South Australia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Granite Island, Victor Harbor, South Australia