The park is open 24 hours a day, seven days a week, 365 days a year. There is a self pay kiosk if nobody is at the entrance station gates if you need to purchase your pass. It is $35 (USD) for 7 days, or $70 (USD) for a year pass. All access National Parks Passes are also sold and those are $80. Prices vary if you are a senior citizen or Veteran. *All prices are current as of 2018 and subject to change*. Roads may close at any time on any day during the year due to significant snowfall. Yes, even during July & August! Be prepared for changing weather conditions and know about alternate routes, if any, while driving or hiking in GNP. The roads in GNP generally close for the winter in early to mid-October. Watch the webpage for more details. Going to the Sun Road stays open for cars year-round to McDonald Lake Lodge. Past that point it's bikes, hiking, snowshoes, or cross country skiing only. It's a beautiful way to experience GNP during the winter months.
35 usd for 7 days is the entry fee but not sure what time is open... I think is 24 hours
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