This trailhead is easy to miss because it’s right next to a house. Rubio Canyon-trailhead is steep and rugged 3.4 mile hike (out and back) with elevation change of 1,410 feet. This trail is unmaintained, however, offers a great view of the canyon mountain. Moreover, the trail is very rocky with narrow path and rated difficult (see photos). Trail is for experienced hikers only. Be very careful not to slide/trip and fall over the sharp rocky ravine below as you ascend. There is no clear trail path once you’ve reached the gigantic wall of sedimentary rocks; you have to climb over it which can be treacherous. Furthermore, this trailhead has multiple zigzags which was challenging. I wouldn’t recommend this trailhead, if you want to go to Mt Lowe Railway. Ample of free street parking. Great upper middle class neighborhood. Overall, I had a challenging and heart pounding hike.

Beautiful canyon. Be careful of obstacles, the terrain, etc. First waterfall is Ribbon Rock Falls. All trails to the other waterfalls beyond these falls are very steep. Had a great time!

It was a great little hike to a pretty waterfall, we did it on memorial day and the weather was perfect, the trail is very accessible but it had a couple of areas where you need to use your hands to get thru, this makes it even more fun, the trailhead is in a residential area and you can park for free on the street, we started the hike around 6am, arrived to the fall and came back to the car without anyone else on sight. The trail is narrow but well maintained, for most of the hike you can hear the water from the creek, it has a couple of crossings but since you don't have to get wet. Once you arrive at the waterfall, there are some rocks to sit down, enjoy nature and relax.

This trailhead is located between two private residences who graciously allow hikers to access the trail through their land. You can park on public unincorporated LA county residential parking spots

Very difficult hike. I usually take the Sam Merrill Trail from the Cobb Estate when I hike, but this led to the same spot in a shorter distance so I figured I'd try it. The beginning is easy but at the first rock the difficulty significantly ramps up. Sharp bushes, steep inclines, rock climbing, loose dirt, and narrow walkways. Clearly not maintained. I'm more of an amateur hiker, without good hiking shoes, and out of shape, and the hike really tested me. If you like a challenge, go right ahead. Otherwise, would not recommend. Try the Sam Merrill Trail instead in that case.

Best trail in Altadena I've done so far. If you have 2 hours and a lot of energy, hike up to Muir Peak after doubling back into the canyon and going up the mountain that's on your right at you start the trail. It's worth it!

Great hike. Provides a smooth, easy hike towards Rubi Canyon Trail, or, an arduous hike up to echo mountain. Be sure to gear up if using this trail as an alternate path to Echo Mountain. It tends to be overgrown (especially after rainfall) and rocky!

This trail is short yet interesting to explore. You park the car on the street and go straight to the trail head. We were welcomed by a big dog on the hill side at the trail head. Then we see clear skyline of downtown LA. At mile 1/8, the trail splits, we took the top trail and did a loop and came back from the bottom. If you keep going deep into the canyon, you will see lots of trees, low bushes and giant rocks. There is a water pipe in the canyon. There are multiple waterfalls, I was able to reach the last fall, but it is steep and requires a lot of rock climbing. If you decided to go, please be safe

This trail entrance leads to many paths, from the reviews I read here and from what I learned by some expert hikers on Saturday, April 1st. We followed the trail to the waterfalls we found via the Alltrails application. There was a lot of water on the creek and the pipes were bursting with water at a few points. The trail to the first set of falls I would rate moderate/strenuous because you are not on a clear path most of the way, you are crossing the creek at a few points and I wouldn't do this without proper hiking boots, especially now with all the water. Expect to get wet. If you are prepared for a strenuous scramble up a steep "path" (again, it's not clear and we were being guided by our Alltrail app route) then you'll be rewarded with another beautiful flowing fall. We didn't go further and on the way back down I learned to surf on rocks. The way down was slippery and one must be very careful. It was a grand adventure and we were blessed with bumping into the expert hikers that know this area very well. The trail was not crowded, understandably so, and we did see a few other groups heading up on our way down. Mostly shaded, bring extra clothes/shoes for after in case you get really wet.

Went today (6/2/23) with my friend and had an amazing experience. The weather was perfect. It's very green.. a bit overgrown but we didn't mind it. There was water flowing and we did a few waterfalls too. Easy to moderate hike. Wear good hiking boots with a nice grip since it could be a bit slippery. Carry water, sunscreen, and some snacks if you want. Would definitely do it again!

This is a very exciting trail! The brushes around the trail are sharp so make sure to wear pants to not get scrapped. There’s a lot of loose sand and narrow trail so make sure to wear good grip shoes. Neither the entrance nor the trail are properly marked so make sure to use All Trails app to keep track of your hike. It was clean, not crowded at all and offered stunning views all the trail around.

Great hiking trail. It's not easy, not difficult ! Features a seasonal waterfall at the end. Do not expect a lot shade. Dogs are permitted on a leash and must scoop their poo. Don't ditch the poo bags on the trail.

The entrance is not obvious. You have to walk between two residential properties to start the hike. The trail is not clearly marked in some areas, but there's only one way in & out. This place is more for canyoneering or mountain climbing.

Trailhead is in a housing neighborhood, street parking (no permit needed). We did canyoneering so it took us VERY long. But to get to the 1st waterfall it probably only takes 15mins or so!

We tried to get to white city ruins following this trail but the first part ( where the trail meet the river ) was easy, from there going up is very narrow with over grown grass and seasonal flowers. The dirt and rocks are very loose, we reached a point where I thought it was not worth the risk.

Definitely not a hike you want to take lil kids on. Over 1500ft of elevation gain.

Nice simple hike not stroller friendly though and great views

Not very popular but pretty good hiking trail.