This is a great hike--the first part to the falls and bridge is maybe a half mile and perfect for little kids. There's a small pond in the creek that kids (supervised) can play in after the water settles down mid-summer. Take some time at the trail head to read about the area. You need a wilderness permit to go beyond the bridge, available at the parking lot (just fill it out, keep your part of it and put the free "application" into the slot). The trail gets steeper after the bridge, and a couple spots are fairly steep but well prepped with "stairs" of rocks and ledges. No danger, and we've met 90-year-olds going up to the lake. About an hour hike. The lake has some fish in it, has a shallow accessible area where the trail comes in, and plenty of semi-secluded spots to have lunch. No tables or restrooms etc. If mid-winter, very cold and little or no snow like Dec. 2011 you can have great ice skating on it. Usually not accessible once it snows unless you know how to snowshoe and deal with uncertain snow depths and weather.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.