The biggest Oktoberfest in the Lake Arrowhead region occurs from mid-September to the end of October every year. During this period, tourists can participate in Oktoberfest festivities and take in the magnificent foliage featuring golden oaks, cottonwoods, and aspens in Lake Arrowhead. Big Bear Lake is another favored location where visitors can experience autumn's beauty from mid-October to the start of November, among other activities. Show more