Dewey Lake, Washington
Me and daughters Deah and Laura had a nice hike near Mt. Rainier, which is an easy hike in beautiful country, sometimes with a nice view of Mt. Rainier.
Dewey Lake is reached from the PCT parking lot on top of Chinook Pass. Chinook Pass is reached from Yakima via highway 410 and from the Seattle side via US from Enumclaw or highways 12 and 123 from Packwood. From the parking lot, you head south on the PCT. Since you are starting at a high elevation (5400') the hike starts downhill, and you hit the lake at about 3 miles. Its a pretty easy hike, and the flowers and views are incredible. Be prepared for mosquitoes.