Irish Hills Natural Reserve - Image 1
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Irish Hills Natural Reserve

4.7
·338 reviews·San Luis Obispo, United States

Vast open space with over 20 miles of trails for hiking & biking, offering diverse habitats and stunning SLO & ocean views.

Highlights

Highlights

Must-see attractions

Social content

Social

From TikTok & Reddit

Best Time

Spring mornings

Wildflowers and cooler temps

CrowdLow
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Irish Hills Natural Reserve - Image 1

Irish Hills Natural Reserve

Best Time

Spring mornings

Wildflowers and cooler temps

CrowdLow
Highlights

Highlights

Must-see attractions

Vast open space with over 20 miles of trails for hiking & biking, offering diverse habitats and stunning SLO & ocean views.

4.7
(338 reviews)

"One of the underrated and lesser known gems for hiking in SLO."

Vertical photo
TIP

Bring Plenty of Water! 💧

Trails can be long and heat up, especially on south-facing slopes. Stay hydrated!

Wear Sturdy Hiking Shoes :athletic_shoe:

Many trails are rugged with rocky and narrow sections. Proper footwear is essential for comfort and safety.

Third hero image

Highlights

Discover the most iconic attractions and experiences

Ocean View Trail

Ocean View Trail

Irish Hills Natural Reserve

Rigorous hike with significant elevation gain, rewarding you with panoramic views of the ocean and San Luis Obispo.

Wildflower Displays

Wildflower Displays

Irish Hills Natural Reserve

In spring, the hills burst with color. A truly breathtaking sight that makes the hike even more magical.

Diverse Geology & Flora

Diverse Geology & Flora

Irish Hills Natural Reserve

Explore unique rock formations and interesting plant life, from shady canyons to rocky, lizard-filled Juniper areas.

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Planning Your Visit

Trail Variety & Conditions

Irish Hills Natural Reserve boasts over 20 miles of trails, offering diverse terrain from easy strolls to challenging climbs. Be prepared for rocky sections and potential heat, especially on south-facing slopes. Bring plenty of water and wear sturdy shoes. Check trail conditions before you go, as some can be rugged.

Best Trails for Views & Wildlife

For stunning ocean and city views, try the Ocean View trail. Hikers often spot lizards and wildflowers in spring, and deer are sometimes seen. Remember that some trails are hiking-only, while others are shared with mountain bikers. AllTrails can help you navigate the network.

Best Times

When
Spring mornings
Why
Wildflowers and cooler temps
Crowd
Low
When
Late afternoons
Why
Golden hour views
Crowd
Medium
When
Weekdays
Why
Fewer crowds
Crowd
Low

Insider Tips

from TikTok, Instagram & Reddit

🤬🤬So this place in downtown San Luis Obispo just snapped my ID in half !! I’m so upset! Im 23 years old and i had another year till my license expires. Called “Mothers Tavern” in downtown San Luis Obispo!!!!! DO NOT GO HERE THEY BREAK REAL ID’s UNTRAINED BOUNCERS !!!!!!! Lemme know if this has happened to you! #bars #sanluisobispo #GenshinImpact34 #fyp #snappedid #bouncer #clubs
@kristen_nicoles
3.7M likes • 27.5M views

Bring Plenty of Water! 💧

Trails can be long and heat up, especially on south-facing slopes. Stay hydrated! Reddit

Wear Sturdy Hiking Shoes :athletic_shoe:

Many trails are rugged with rocky and narrow sections. Proper footwear is essential for comfort and safety. Reddit

2 hour staring contest #sanluisobispo #dinner #wtf
@lil_tuckling
33.6K likes • 253.7K views
Irish Hills Natural Reserve located in San Luis Obispo, California 🌾 . . . #healthhustle #takeahike #ilovehiking #ihikeslo #slohikers #slohike #IrishHillsNaturalReserve #irishhillstrail #shareslo #hikingadventure #califoniahikes #californialandscape #hikersofinstagram #slocalrepost #slocal #slolife
health_hustle
32 likes • 1.5K views

Dog-Friendly Trails :dog:

Your furry friends are welcome! Just be sure to keep them leashed and clean up after them. Reddit

Mountain Biking Paradise :mountain_bicyclist:

Manzanita trail is a local favorite for downhill biking. Many trails are shared, so be mindful of others. Reddit

🍀 Follow us on a hike in the Irish Hills of #SLOCity and join us in appreciating this gorgeous walk through wide open spaces and vast greenery! Did you know that at almost 1200 acres, Irish Hills Natural Reserve is the City’s Largest open space and boasts over 20 miles of trails? 🏡 The Irish Hills Natural Reserve was originally going to be developed into low density housing, but the City negotia...
sloparksandrec
37 likes • 928 views

Tips

from all over the internet

Bring Plenty of Water! 💧

Trails can be long and heat up, especially on south-facing slopes. Stay hydrated! Reddit

Wear Sturdy Hiking Shoes :athletic_shoe:

Many trails are rugged with rocky and narrow sections. Proper footwear is essential for comfort and safety. Reddit

Dog-Friendly Trails :dog:

Your furry friends are welcome! Just be sure to keep them leashed and clean up after them. Reddit

Mountain Biking Paradise :mountain_bicyclist:

Manzanita trail is a local favorite for downhill biking. Many trails are shared, so be mindful of others. Reddit

Use AllTrails App :iphone:

Great for navigating the extensive trail network and connecting different routes. Reddit

Watch for Poison Oak :warning:

Be aware of your surroundings and avoid contact with poison oak, which can be present on some trails. Reddit

What Travellers Say

4.7
(338 reviews)

Reviews Summary

Irish Hills Natural Reserve is a highly recommended, underrated gem offering diverse hiking and biking trails with stunning views of SLO and the ocean. Visitors praise the well-maintained paths, varied terrain, and beautiful spring wildflowers. Some note that certain areas can get warm and advise bringing plenty of water and proper footwear.

"One of the underrated and lesser known gems for hiking in SLO. Irish Hills offers a great mix of terrain, elevation, cool views and interesting geology. Lots of trail options to explore . Connect to Johnson Ranch open space, for extended trails. AllTrails is a great app for connecting the dots. Get out and check out these trails! Highly recommended."

Jaimal Hanson

"This trail has everything. Lush landscape, and tree covered shaded areas. Rocky Juniper areas with lots of lizards. In the spring it’s covered in wildflowers hike far enough and you can see the ocean, but the whole south side gives you stunning views of San Luis Obispo. Stunning area.
I had my phone put away for the first 2 miles and didn’t get any photos because I just admired the views as I talked with my friend… so I’ll have to go back and take lots of pictures to share here ;)
The map at the beginning of the trail shares a guide of the trails easy to expert areas. And there’s lots of parking at the trailhead."

Cyndi Graham

"Beautiful hike! Very well maintained trails with clearly marked signage. Good variation between challenging hikes and more leisurely trails, some rocky spots and narrow trails but always enough space to safely hike or mountain bike.
We took the Ocean View trail which was rigorous but rewarding; good elevation difference but with a very doable grade of incline. Highly recommend, and we'll definitely be coming back to try the other trails!"

Brian Templet

What People Like

Great trail variety
Stunning ocean views
Beautiful wildflowers

What People Dislike

Can get hot
Some rocky trails

Frequently Asked Questions

🚇 🗺️ Getting There

Irish Hills Natural Reserve is located in San Luis Obispo, California. Access is typically from the north side of town, near areas like Costco and Whole Foods. Parking is available at the trailhead. Reddit

Yes, there is parking available at the trailhead, which is convenient for starting your hike or bike ride. Reddit

Yes, Irish Hills is a popular spot for mountain biking, with trails like Manzanita being a favorite for downhill rides. Reddit

The AllTrails app is highly recommended for navigating the extensive trail network and finding connections between different routes. Reddit

While specific public transport routes directly to the trailhead might be limited, San Luis Obispo has a bus system that can get you close to the general area. Check local transit schedules for details.

🎫 🎫 Tickets & Entry

No, Irish Hills Natural Reserve is a public open space and does not require tickets for entry. It's free to explore! Instagram

As an open space, Irish Hills is generally accessible during daylight hours. It's best to check with the City of San Luis Obispo Parks and Recreation for any specific seasonal or operational hours. Instagram

There is no entrance fee to access Irish Hills Natural Reserve. It's a free public park for hiking and recreation. Instagram

Yes, Irish Hills Natural Reserve is dog-friendly, allowing leashed dogs on the trails. Remember to clean up after your pet. Reddit

The reserve offers a variety of trails, from easy to expert. While some are more challenging with elevation, there are also more leisurely options available. Reddit

🎫 🏞️ Onsite Experience

Expect stunning views of the dormant volcano chain, Morro Rock, Laguna Lake, and the city of San Luis Obispo. Some trails offer ocean vistas. Reddit

You might spot lizards, deer, and a variety of interesting flora, especially wildflowers in the spring. Reddit

Restroom facilities may be limited. It's advisable to check with the City of San Luis Obispo Parks and Recreation or plan accordingly before your visit. Instagram

Hiking and mountain biking are the primary activities. The reserve offers over 20 miles of trails for exploration. Instagram

Crowds can vary, but weekdays and early mornings tend to be less busy. Weekends, especially during peak seasons, can see more visitors. Reddit

📸 📸 Photography

The Ocean View trail offers sweeping vistas, and the wildflower-covered hills in spring are incredibly photogenic. Look for interesting geological formations too. Reddit

Late afternoons provide beautiful golden hour light for capturing the landscape and city views. Spring mornings are ideal for wildflowers. Reddit

Capture the diverse landscapes, from lush greenery and tree-covered areas to rocky Juniper zones. Don't forget the panoramic views of SLO and the ocean. Reddit

Keep an eye out for wildlife like deer, and the unique geological features scattered throughout the reserve. Reddit

For casual personal photography, no permit is typically required. For commercial or professional shoots, it's best to contact the City of San Luis Obispo Parks and Recreation department.

For Different Travelers

Tailored advice for your travel style

👨‍👩‍👧 Families with Kids

Irish Hills Natural Reserve offers a fantastic outdoor adventure for families. The variety of trails means you can choose a shorter, easier loop suitable for little legs, or a more moderate hike with gentle inclines. Reddit The chance to spot lizards and wildflowers in spring adds an element of discovery that kids often love. Reddit Remember to pack plenty of snacks and water, and consider bringing a stroller or carrier for very young children if you opt for wider, flatter paths. The reserve is dog-friendly, so your family pet can join in on the fun too! Reddit

🚴 Mountain Bikers

For mountain bikers, Irish Hills is a prime destination in San Luis Obispo. The reserve boasts over 20 miles of trails, with options ranging from flowy singletrack to more technical descents. InstagramReddit The Manzanita trail is particularly famous for its downhill sections, offering an exhilarating ride. Reddit Many trails are shared with hikers, so always ride responsibly, be aware of your surroundings, and yield to uphill traffic. Reddit The interconnected network allows for custom routes, and the varied terrain provides a good challenge for all skill levels. Remember to wear a helmet and bring your bike repair essentials.

🚶 Hikers Seeking Views

If breathtaking vistas are what you seek, Irish Hills delivers. The Ocean View trail is a must-do for its expansive views of the Pacific Ocean and the city of San Luis Obispo. Reddit Other trails offer glimpses of the dormant volcano chain and Morro Rock. Reddit The spring wildflower season transforms the landscape, providing a stunning backdrop for your hike. Reddit Consider bringing a picnic to enjoy at a scenic overlook. The reserve's extensive trail system means you can tailor your hike to your desired length and difficulty, ensuring a rewarding experience with every step.

Deep Dives

In-depth insights and expert knowledge

Exploring the Trail Network

Irish Hills Natural Reserve is a sprawling 1200-acre expanse, making it the City of San Luis Obispo's largest open space. It features over 20 miles of trails, catering to a wide range of outdoor enthusiasts. Instagram+1 The trail system is interconnected, allowing for various loop combinations and extended adventures. You can connect to the Johnson Ranch open space for even more hiking options. Reddit The reserve offers a mix of terrain, from relatively flat, wide paths to steeper, more rugged ascents with rocky and narrow sections. Reddit This variety ensures that whether you're looking for a leisurely walk or a challenging workout, there's a trail for you.

For those seeking a more vigorous experience, the Ocean View trail is frequently recommended for its significant elevation gain and rewarding panoramic views. Reddit Mountain bikers also flock to Irish Hills, with trails like Manzanita being a popular choice for downhill riding. Reddit It's important to note that some trails are designated for hiking only, while others are shared with cyclists, so always be aware of your surroundings and yield appropriately. Reddit The map at the trailhead provides a guide to trail difficulty, ranging from easy to expert, helping you choose the best route for your fitness level. Reddit

Geology, Flora, and Fauna

The natural beauty of Irish Hills extends beyond its trails. The reserve is characterized by diverse habitats, including lush, tree-covered shaded areas and more arid, rocky Juniper zones. Reddit This varied landscape supports a rich array of plant life. In the spring, the hills are renowned for their vibrant wildflower displays, transforming the landscape into a colorful spectacle. Reddit Beyond the flora, the reserve is home to various fauna. Hikers often report seeing lizards basking in the sun, and deer are sometimes spotted, especially on less busy trails. Reddit The geology of the area is also noteworthy, with interesting rock formations and the backdrop of a dormant volcano chain visible from many vantage points. Reddit

Visitors should be mindful of potential hazards, such as poison oak, which can be found along some trails. Reddit The reserve also offers a collection of geocaches for those who enjoy treasure hunting. Reddit The changing microclimates within the hills mean that even on a warm day, you might find cooler breezes in certain canyons, while other exposed areas can heat up considerably. Reddit This ecological diversity makes Irish Hills a fascinating place to explore for nature lovers and casual hikers alike.

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