Taking the kids to Washington State’s Whidbey Island for spring break, a summer vacation or day trip? We spoke with Deb Crager, author of 101 Things to Do on Whidbey Island, for her suggestions on what to do on this beautiful 35-mile-long island, an easy day trip from Seattle (it’s only 30 miles north of Seattle), or weekend getaway from British Columbia or North Washington. Why is Whidbey Island a great destination for a family vacation? I think there are plenty of things to do for all ages. Being out on the water in a boat, or watching the tankers make their way through the sound, or hiking in the…