Welcome to Sailnet!
While you've just received good advice, I have better advice for you.
The best first trip out of Everett is Langley, on Whidbey Island. It's about 7 NM from you and an easy trip.
Langley has a small marina, where your 27footer will be a "big boat". Moorage is reasonable and there should be plenty of room for you this time of year.
Be careful of your depth at low tide and stay close to the "stockade"
You can anchor to the south of the breakwater at Langley, but, again, watch your depth.
Langley is an interesting town, with shops, restaurants and a movie theater.
I like the Village Pizzeria there.. Be careful how you order. The pizzas are huge. It'll take a while to get one made for you, so be patient, it's worth it.
Be careful heading out of the marina as the waters to the north are shoal and loaded with crab pots.
Don't hesitate to ask if you have questions.
My fellow PNW Sailnetters will be quickly replying and verifying that my advice is better than theirs