I go out there every year or two and visit family- they live in Kirkland which is a NE suburb. High home values, good quality of life, yada yada. Bellevue is just south of Kirkland and is also quite nice...it seems to have a centralize business district in addition to being a typical high level suburb.
If you dont have to live/work near the city, there are towns closer to outdoors activities that could be good. Everett is the far north part of the metro, Snohomish is NE metro, Snoqualmie is getting into the mountains east of the metro, and then there are commuter ferry towns to the west of the city like Bainbridge, Port Townsend, Bremerton, and many more.
That who region is full of outdoors activities. Where you set up shop is probably best determined by 1- what can you afford, 2- where do you have to work, 3- schools(assuming that matters), 4- nearby activities. There are multiple ski spots closer to Snoqualmie, for example. Hiking is everywhere- western islands, east metro, far east, etc. We have been on Lake Washington to paddleboard and kayak many times and both are pretty popular there(as well as further out of the metro). There is a ton of singletrack around the eastern suburbs, but that is all I know since we have stuck to that area for cycling. Road/gravel riding is not nearly as great as a bunch of other places I have been to, but the metro has a lot of cycling routes for what thats worth.
Mountains are big enough that you can see them from most anywhere in the metro.