The Lions Club host the event every year.
Held at Newberry Park in Williamsport, the fair is home to carnival rides, food vendors, and a pet parade.
It kicked off Tuesday at six, and goes until Saturday.
Organizers say it's the Lion's Club big fundraiser and has been a community tradition for a long time.
Organizers say one of their most popular events is Wednesday night's pet parade which passes through Newberry.
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