Cave/Tech Diver Moving to PNW

[AeroSpartacus]

Hey, I'm a (primarily) cave diver that's planning to move to Seattle later this year (August/September timeframe) from Atlanta. I'm looking to get an idea of what the diving 'situation' is; if there are any good local dive shops, dive groups, locations, etc. From what I can tell, there aren't really any caves to speak of but I would be interested if anyone knows of anything like that that's remotely drivable, or if there's anything else noteworthy as far as tech diving or wreck diving goes (or maybe even just solo diving, separately). Tangentially related, is there any shop that will give me a cave fill for my tanks?

For some background of myself, I own a Choptima rebreather (certified to 170 feet / helitrox, as well as cave CCR crossover), and have just under 100 total cave dives post-certification currently between FL and Mexico. I'll probably get certified for normoxic trimix (~230 ft) sometime in the next year. I also have a cave DPV certification, though I don't own my own at this point. I have a drysuit and several different undergarments, but no heated undergarments; is it cold enough water there that I should look at getting those soon?

Outside of the tech stuff, I do still enjoy the occasional recreational diving to look at critters.

 

[Cthippo]

While not large, there are some holes in the ground that are full of water north of Rosario beach at Deception pass. I have kayaked into them and one book I have says there are more under water. The current isn't bad, but the area gets lots of surge.