In my need to get a little more exercise in, we stopped at Deception Falls on the way home from Lake Janus. About 15 miles west on Hwy 2 you can take a right into the parking lot for Deception Falls. The boys were not very excited about this since they had already taken their wet shoes and socks off but they begrudgingly got out of the car.
The boys enjoyed crossing the stream along the trail.
This is more of a walk than a hike since it is only 1/2 mile (also a .2 mile option), but it is amazing! I don't know that I would make the long drive to just see this, but it is definitely a must see if you are in the area.
A wilderness pass is not needed to park in the parking lot and there are potties (really stinky when we were there). The boys were extremely happy that we ended up stopping and said they wanted to bring their friends next time.
This is very child friendly, even for very young ones. The trail is well maintained but is not stroller or wheelchair accessible due to stairs leading to the viewpoints.
From Everett, drive east on US-2, 10 miles east of Skykomish to the Deception Falls Picnic Area (located 8 miles west of Stevens Pass.)