Camano Island is a 1-point summit accessed via a short and nearly flat elevation gain hike, or drive-up due to larger activation area.  Thank you Josh WU7H for blog comment about drive-up option, and difficulty trying to chase this summit.  Stopping on side of N Cross Island Rd just North of the summit appears to be one drive-up option (see picture below).

It took me 2 days to get my 4 contacts at Tolmie Peak. I drove an hour and a half from Buckley, WA down HI 162 to Mowich lake. I then hiked the 2.9 miles past Lake Euclid to Tolmie Peak and experienced strong winds and driving rain to get heard. 

I bought my Rainier park pass on the way to Mowich lake and a Fee Stop, $20. 

There is clean water at Lake Euclid and while the rain is falling so are the streams. there were 2 waterfalls along the trail. 

On a training hike for our Switzerland Hiking / Climbing tour next July / August.  Accompanied by my wife Sharon and our Labrador Retriever Dexter.  Rattlesnake Mountain is a relatively easy 9.2 miles round trip (including preliminary walk to trail head from parking lot), gaining 2,500 feet +/- to a summit elevation of 3,517.  TH is is easily accessible from my home QTH in Bellevue, WA.  I-90 east to exit 32 in North Bend, then good but windy paved road to Rattlesnake Lake area.  The hike is through mostly wooded terrain, with some sections

Rattlesnake Mtn is part of King County's "Big Backyard" series of  hikes.  There is a trail head at the northwest end of the mountain at Snoqualmie Point and at the southeast end at Rattlesnake Lake.  Walking from TH to TH is about 11 miles.  We took the RS Lake route which is 4.3 miles and gains ~2500 ft to the summit.