Happy Summer Solstice! Summer is in full swing, and today, we celebrate the longest day of the year! ☀️ Take advantage of the extended daylight and discover a new outdoor adventure. The ParkPassport App can help you find a park site to explore! So grab your hiking boots, pack a picnic, or embark on an adventure at a national or local park. #Summer #SummerSolstice #ParkPassport #App #OutdoorAventure #LongestDay #Sunshine #NationalParks #Park #Passport #Yosemite #NationalPark 📸: NationalParkTrust Images: Nature shots around YosemiteNPS