Way up in the foothills of far-flung La Cañada Flintridge, you'll find the Cross Town Trail hike, whose prize attraction is a 20-foot-tall teepee erected amidst a tangle of public and private lands and trails. The quickest route to the teepee is from the end of Harter Lane, where a steep trail will take you about two hours round-trip. Proceed with caution, as the lines between public trails and private are quite blurred. Technically, the land beneath the teepee is privately owned, and there's a single, easy-to-miss sign pointing out the dividing line. Even so, once at the teepee, hikers nab a quick picture and take in the breathtaking views, which stretch as far as Palos Verdes Peninsula, downtown and the Hollywood Hills. But if you want to sit in the teepee — bad idea. There's a “KEEP OUT” sign at the front entrance, so don't even try. —Ani Ucar
End of Harter Lane, La Cañada Flintridge, 91011. lcftrails.org/?page_id=118.