Contrary to some local news reports, the fields were full of strawberries and raspberries. Blueberries, blackberries and marionberries should be ripe by July 4th.
I first read about this farm several years ago while living in Minneapolis and it was one of the first spots we visit ed when we moved to the Northwest. It instantly became a family favorite and we've returned many times since. (Trust me, if they can get my city kids to want to hang out at their farm, they're doing something right.)
Our favorite thing is their summer concert series. They've got concerts every Thursday evening throughout the summer (just $10 per carload.) In addition to great live music, they're are hayrides and the fields are open for berry picking. It's the perfect spot for a picnic or you can buy food there. They've got delicious burgers, roasted corn and now a wood-fired pizza oven.
If you want to pick berries yourself, check out www.PickYourOwn.org for a list of all the farms near you. They've got a comprehensive list for the entire US.