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Primarily , the fort overlooks the narrow passage entering Paraquita Bay to the west - one of the largest natural harbours in the British Virgin Islands and the natural gateway to one of the relatively few large agricultural areas on Tortola .
 Virgin Islands
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Virgin Islands