One of the spots we camp at for the past 3 years has an active bear population and each site has lockable bear boxes.
We camp with the bunk ends open and have never had a problem.
A ranger once told me the whole idea is to keep the bears from entering your campsite in the first place. Bears are on a mission and won't waste time if pickings look slim. Bears learn coolers are a potential source of food and will check out even if the cooler is empty or just contains water. So hide the cooler in the bear box or at least cover it with a tarp.
If you like to feed the birds, leave the seed at home. Birdseed is candy to a bear.
My wife loves bears and her idea of a dream vacation is the North American Bear Center in middle-of-nowhere Minnesota. We saw one 2 years ago on the road near the park and it made her day. I'd just as soon see one on tv.
2015 Shamrock 231KSS, Oyster shell
2016 Chev Silverado LT Z71 Ext. Cab, 4x4, 5.3L V/8
Reese Straight Line WDH, 2000W Honda Gen.
2 Old Town kayaks & 2 Boston Terriers - Zoey/Gonzo
Lar & Ruth
55 nights camping in 2015, 45 in 2016