K.S.
Oregon. Rent a car and do the scenic trip on the east coast. First stop at the gorge area. There is a little train ride you can take up a little mountain. You can get a little meal at the top. The 3 year old will absolutely love the train ride. The cruise the east coast. We went in June and the cherry trees were in full ripe and were selling on the side of the road. Visited Timberlake lodge. There was still snow on the ground in June. Probably out of luck in July but who knows. Then we went to Mt. Bachelor and the back portion of the circle road had little cabins you can rent. My daughter was about 4 then and absolutely loved it. She got to run around in the camp area with other kids. Then to Crater Lake. Amazing view. Then we hit the desert part of Oregon and then dipped down into California to see the RedWoods. My kid loved the fact that the trees were huge and so much more bigger than us. There was also a cold stream that we let her play in.