The infrequently visited trail to Doe Falls is a good option for hikers preparing for summer hiking. Because of its lower elevation, this hike is snow-free earlier in the year than most in this area, allowing for a pleasant hike to a secluded waterfall early in the season.
You're unlikely to see very many people on this trail, because most hikers take the trail to the Suntop Lookout, with its viewpoint of Rainier, rather than visit the lesser-known waterfall.
Start ambling through low forests, a good warmup before the trail begins to climb to Doe Creek. Unfortunately, no bridge crosses the creek, and a ford is a must here. Particularly in early season, be aware that crossing running water is dangerous -- do not attempt this if the creek is running particularly high or if you do not feel comfortable doing so.
After you successfully (and safely) cross the creek, enjoy wildflowers galore -- hellebore, dogwood, bead lily, and munch on wild blackberries, strawberries, or thimbleberries, depending on the season.
As you hike, expect to see mountain bikers and horses, since the Suntop Trail is multi-use, but the half-mile trail to Doe Falls is open only to hikers, so you can expect a little more solitude once you reach the junction with the Doe Falls Trail -- 2.5 miles from your starting point. The short trail to the falls takes you through a shady forest and even more wildflowers.
The trail as it approaches Doe Falls is eroded, so use caution as you view it. There is a sign for the route about 500 feet further up the trail than where it is indicated on maps.
Enjoy the spray coming off of the falls and swift-running Doe Creek. Have lunch here, or rejoin the folks heading to Suntop Lookout and enjoy expansive views of Rainier before heading back to your car.