Sentence:  The "<WSD>dudes</WSD>" are the automobile and bus tourists, mere passers-through: thousands a summer day, millions a season. ... "<WSD>Dude</WSD>" expresses perfectly the image that seasonals from the stagecoach driver to the gas-pump jockey have had of tourists: soft, wealthy, uninitiated, ignorant, lowland and (preferably) eastern. ... For the average <WSD>dude</WSD> – if such a construct may be admitted – the park is an unusual commodity, financed by his taxes, from which he is therefore entitled to extract as much use and pleasure as he can from the rangers and seasonals who stand in his way. 
Meaning of the word marked with <WSD> tags:  A tourist.