FT. Casey state park on Whidbey Island. Only an hour or so plus a short ferry ride out of the city. Great place, it was built about 1900 and is featured in one of the novels I'm trying to get published. Flashlights are useful, but the bunkers aren't too deep and dark, just enough to be phone.
That is the granddaughter about a year ago. She lives with us about four days a week. Long story, I won't go into here but if you two want grandbabies make sure the children involved have taken care of things like education, jobs, drug treatment, psychological counseling and maybe marriage first.