Click here to watch a video, courtesy of WPBN-TV, Traverse City, Mich., about the following story.

Memorial Day marks the unofficial start of summer and this weekend campgrounds in the Traverse City, Mich., area were packed with out-of-towners and locals looking to enjoy the great outdoors.

The Traverse City State Park was busy this entire holiday weekend,. In fact its entire campground was filled; that’s 349 sites all occupied.

Department of Natural Resources (DNR) park rangers say the weather played a big role in the business boom this weekend, as well as the 2012 Bayshore Marathon that brought in many runners to the area.

TC State Park Lead Trooper John Walter says, “We are more than up this year. This is the first year that we filled up our reservations about a week and a half in advance, it’s the first time I’ve seen that in the 26 years I’ve worked here!”

Even the storm system that rolled through Traverse City Sunday morning didn’t scare off campers.