One of our very favorite places to hike is Eaton Canyon, out in Altadena. This is the perfect time of year to go, as spring wildflowers are beginning to emerge and the stream is full with mountain-snow runoff!
We also love it because it's dog-friendly! So few places welcome puppehs, which is a real shame...
For the more ambitious hikers, there is a beautiful waterfall you can hike to as well.
Please note that if the water level is high in the stream, as it is now, you might fall in trying to cross like I did. :-D