The Santa Lucia Wilderness is a little-known 20,412 acre wilderness at the southern end of the Santa Lucia Range near San Luis Obispo. Only a few trails traverse the relatively small wilderness, including Lopez Canyon Trail, Big Falls Trail and Little Falls Trail. The Little Falls and Big Falls Trails can be connected using dirt roads to form an attractive loop. The dirt road on the ridge is a fire road (closed to vehicles) with stellar views of the surrounding ridges while the dirt road at the bottom is the access road for a surprising number of homeowners holed up in lower Lopez Canyon. While the road in Lopez Canyon is publicly accessible, high clearance is required, especially if there is any kind of flow in the waterfalls since the road crosses Lopez Creek many times (and often quite deep). There is therefore little vehicle traffic on the road. For most folks it makes much more sense to park on the other side of the ridge at Rinconada Trailhead. From Rinconada, a great 13+ mile lasso loop includes the Big Falls and Little Falls Trails which feature three waterfalls, excellent views of the surrounding mountains and great diversity of flora. Moreover, the out-and-back trail from Rinconada to the ridge is not very long (~1.5 miles) and enjoyable in its own right.
My last visit to this area was in autumn when the falls were mostly dry so it was a completely different experience with the falls and streams gushing at high flow after recent heavy rain. The centerpiece waterfall feature is Big Falls at around 80 ft in height with a beautiful rock amphitheater surrounding the falls. Lower down the Big Falls Trail is a smaller “slide” falls that plunges into a deep pool that makes for a lovely swimming and diving hole on warm summer days. The third falls is “Little Falls” which is about half the height of Big Falls but has very charming setting and pretty plunge pool. Little Falls is not visible from the Little Falls Trail; instead one must take a usepath that departs the main trail at the last crossing of Little Falls Creek before it embarks on a lengthy ascent up the Little Falls canyon. If there is flow in the creeks expect dozens of creek crossings, both on the trails and the Lopez Canyon road with guaranteed wet feet.