We made a similar trip
last year in our C-22 (there's another post or two following the one in that link).
There are at several launching options for launching in Anacortes.
--
Washington Park (
Map) - The county park has a sand / gravel ramp (well, paved partway, but you'll end up on sand). And a trailer parking lot with a self-serve kiosk - $9/day, up to 14 days (per the webpage linked above). We ended up launching there, and it worked fine for us. The dock was short last year (a couple sections had broken off in a winter storm). So recovering was trickier; we planned to go have her slung out at Cap Sante (see below), but we saw someone else pulling out and decided to give it a try. As I said, it's a gravel / sand ramp, so I was glad for 4WD low.
--Skyline Marina - they have a sling hoist and will. sling your boat in and out for something like. $1/foot. But then you have to step / unstep the mast on the water. And when we were there, they were. busy enough that they couldn't offer a spare slip in which to do that. We did end up spending a night in a guest slip, and it was pleasant enough.
--Cap Sante Marina - They also have a hoist - same basic deal as Skyline. They weren't quite as full and said they could find us space to tie up to unstep the mast, but we ended up recovering at the park ramp.
When we go back (I'm told by the. family that it's a matter of when, not if), we'll probably plan on Washington park. We might camp for a night there before rigging and launching, and hop over Rosario in the early morning again.
If you have any more questions about my limited experience small-boat cruising in the SJ's, feel free to ask.