Limekiln, Priest Rock and Kennedy Trail

The overall route is rated as moderate, but it's important to understand the individual sections. The Limekiln Trail is generally easy and kid-friendly. However, the Priest Rock Trail involves a sustained, steep climb, often rated as difficult, and the Kennedy Trail also presents a continuous, demanding ascent. When combined into a loop, the hike is considered medium to strenuous, requiring good physical conditioning.

This trail offers dramatic environmental shifts. You'll start in the cool, shaded redwood groves of the Limekiln section, featuring lush creeks and historical limekiln ruins. As you ascend the Priest Rock and Kennedy Trails, the terrain transitions to dense brush and less dense woodlands, culminating in exposed ridge tops. These higher sections provide expansive panoramic views of the Santa Cruz Mountains, Lexington Reservoir, San Jose, and the wider San Francisco Bay Area.

Key points of interest include the historic limekiln ruins on the Limekiln Trail. As you climb the Priest Rock Trail and Kennedy Trail, you'll be rewarded with stunning panoramic views of Lexington Reservoir, the Santa Cruz Mountains, and the entire San Francisco Bay Area from the ridge tops.

Specific parking details for this combined route can vary depending on your starting point. For the Priest Rock and Kennedy Trails, parking is typically available near the trailheads within the Sierra Azul Open Space Preserve. For the Limekiln Trail, parking is usually found at Limekiln State Park. Always check local park websites for the most current parking information and any potential fees.

Regulations regarding dogs can vary by park and trail section. The Priest Rock and Kennedy Trails, located within the Sierra Azul Open Space Preserve, generally allow dogs on leash. However, Limekiln State Park, where the Limekiln Trail is located, often has stricter rules regarding dogs, sometimes restricting them to paved areas or specific trails. It's best to verify the current dog policies for each specific section before your visit.

Spring and fall are generally the best times to hike this trail. In spring, wildflowers are abundant, and temperatures are mild. Fall offers cooler weather and clear views. Summer can be very hot and exposed on the Priest Rock and Kennedy sections, requiring ample water. Winter can bring muddy conditions, especially on the Priest Rock Trail, and potential trail closures due to rain.

Hiking the Priest Rock and Kennedy Trails within the Sierra Azul Open Space Preserve typically does not require a permit or entrance fee. However, if you start or access the Limekiln Trail through Limekiln State Park, there may be a day-use fee for vehicle entry into the State Park. Always check the official park websites for the most current fee information.

When hiking in Sierra Azul Open Space Preserve, it's important to stay on marked trails, pack out all trash, and respect wildlife. Dogs are generally allowed on leash. Mountain bikers and equestrians also use these trails, so be mindful and share the path. Always check the Midpeninsula Regional Open Space District's official website for the most up-to-date regulations and any fire restrictions.

While the Limekiln Trail section is relatively easy and often considered kid-friendly due to its short length and minimal elevation gain, the combined Priest Rock and Kennedy Trails are significantly more challenging. The sustained, steep climbs make the full loop unsuitable for beginners or young children. Families looking for an easier outing might consider hiking only the Limekiln Trail section.

Yes, sections of this route intersect with other trails. Approximately 65% of the route follows the Bay Area Ridge Trail - 03 - South Bay. You will also be on portions of the Priest Rock Trail, Limekiln Trail, and Kennedy Trail, which are official trails within the preserve system.

There is no potable water available directly on the Priest Rock and Kennedy Trails, which are largely exposed. For the full loop, especially during warmer months, it is crucial to carry ample water, more than you think you'll need. Additionally, bring sun protection (hat, sunscreen), sturdy hiking shoes, layers of clothing, snacks, and a map or GPS device.