Visiting Rose Valley Falls probably stretched the limit on what could reasonably do in a day from Los Angeles as it was probably closer to Santa Barbara than it was to downtown LA.
When we first visited this waterfall, it was merely a limestone-type waterfall, but having been a relatively dry Winter at the time, we wondered whether it would be more interesting had its taller upper tier (easily over 100ft tall) been flowing. So nearly eight years later, we made a return trip here on a day right after a full day of rain (in a year where we were having a pretty rainy Winter), and we'd have to say we weren't disappointed despite the 2.5-hour drive just to even get here.
The hike to the base of the falls was a pretty easy 0.4 miles each way. We were able to catch glimpses of the upper waterfall from the initial sections of the trail. However, as we got closer to the falls, the views of that upper waterfall became more obstructed.
Anyways, when the stream was flowing well on our second visit, there was a stream crossing that required us to do a little boulder hopping to stay dry. As we got near the falls, we noticed a pair of smaller waterfalls or cascades within the main stream making some noise before we were at the base of the main 50ft or 60ft falls. Once there, its pretty mossy nature became apparent, but by this point, we were no longer be able to see the Upper Falls.
We did notice some pink rose petals near the base of the falls, but we weren't sure if they were put there by a photographer or if they were there naturally since we didn't see any roses from what we could tell in the immediate area. Nonetheless, I thought it was a fitting thing to see considering the name of this falls was Rose Valley Falls, after all.
First thing's first. To get to Rose Valley Falls from LA, you have to drive north on the 101 Freeway towards its junction with Hwy 33 near Oxnard (between Camarillo and Santa Barbara).
Then, you have to drive north on Hwy 33, which starts off as a highway before becoming a mix of streets with traffic lights and rural roads (actually even coinciding with Hwy 150) en route to Ojai. Once in the village, you turn left at the traffic light junction with Maricopa Highway. Then, you drive the next 15 miles or so along the winding and rockfall-prone Maricopa Highway (Hwy 33) into Los Padres National Forest.
Along the way, you can purchase an Adventure Pass at the Wheeler Gorge Visitor Center. All parked vehicles are supposed to display this pass, and from what we could tell, this was the most obvious place to purchase it (we didn't see a place to purchase one near the Rose Valley Campground).
After around 15 miles, you turn right at the signpost for the Rose Valley Campground and Piedras Blancas. Then continue along this road for the next three miles towards a 4-way stop sign intersection. If you miss this intersection and see the Rose Valley Gun Club, then you went too far. Turning right at the 4-way intersection, you drive a little less than a mile further into the Rose Valley Campground area where there's day-use parking at Campsite 3 and the trail begins besides Campsite 4.
En route to the campsite area, you may be able to spot the Upper Falls if you're timing's right.