Heads up: The trail you're about to tackle is muddy and slippery even in "dry" conditions. If there's been a string of wet days — those being very common around Whittier, which is after all in a temperate rainforest — you can expect the trail to be more mud than dirt. The image shown here was on a dry part of the trail, in relatively dry conditions.
The trail is also very brushy, with several stream crossings, and bear encounters are common due to the profusion of berries and fish running in the same streams you'll need to cross. Happily, it is also beautiful!