I posted this as a reply to my introduction post, and then thought better of myself, and am moving it here.
This is a picture I took from Dunsmuir, CA at "Hedge Creek Falls". It's right off the I-5 freeway, <1 mile walk, parking is within sight of the freeway exit.
Very cool place for being so close to the freeway. It's down a hill, along a nice dirt path, but it's not WC Accessible, sadly. More info here: http://dunsmuir.com/hikes-waterfalls/
Dunsmuir itself is a cute little town, with cute parks, an old train, and very easy to navigate on/off I-5. Next time you are in Northern California along I-5 I suggest stopping in for an afternoon enjoying the place!
There is free boon docking available nearby and also close to I-5: http://freecampsites.net/#!3221&query=sitedetails. There isn't any water anymore really (just a stream, it used to be a lake!). I've been thru there in the past year during the "on season" where they supposedly charge you, but they don't, near as I can tell. It's still a great place to stop over along the i-5 route, and has a big turnout for larger RV's, but the paved road in is pretty curvy, so go carefully if you are > 20 feet long.
With Love,
Tara