4.4
(25)
191
hikers
3
hikes
Hiking in Thomas F. Riley Wilderness Park offers a diverse landscape characterized by rolling hills, canyons, and old groves of Coast Live Oaks and Western Sycamores. The 544-acre wildlife sanctuary features seasonally flowing creeks and areas blanketed with Coastal Sage Scrub and grasslands. Hikers can explore varied terrain, including trails leading to vista points with views of Orange County and the Santa Ana Mountains. The park also includes a native plant butterfly garden, adding to its natural features.
Last updated: October 11, 2026
1
hikers
7.95km
02:11
140m
120m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
3
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

3
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
2
hikers
5.10km
01:27
110m
130m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
6
hikers
6.99km
02:03
200m
200m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
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Enjoy spectacular city and mountain views while exploring Lake Mission Viejo's scenic 3-mile paved trail. Spot local wildlife like herons and turtles along the shimmering waters of Lake Mission Viejo.
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Here the trail comes to a head and you get sweeping views over town. To the west as you head down the trail it becomes a singletrack, while to the north it runs the length of the ridge as a wide packed dirt path.
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The trail here is wide packed dirt doubletrack that offers sweeping views over the park toward Ladera Ranch and the mountains beyond. You can connect to the Shea Trail here to switchback down the ridge.
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Enjoy spectacular city and mountain views while jogging Lake Mission Viejo's scenic 3-mile paved trail. Spot local wildlife like herons and turtles along the shimmering waters of Lake Mission Viejo.
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Here, you get a nice view of the reservoir. Time for a swim?
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This guide features 5 distinct hiking routes that are easily accessible from bus stations, offering a convenient way to explore the park's natural beauty without a car. These include 1 easy and 1 moderate route directly from the provided guide data, plus additional routes from the broader area that are bus-accessible.
The trails accessible by bus in Thomas F. Riley Wilderness Park offer diverse scenery. You can expect to hike through old groves of Coast Live Oaks and Western Sycamores, particularly along routes that follow seasonal creeks. The terrain also features rolling hills and canyons covered with Coastal Sage Scrub and grasslands, providing varied vistas. Keep an eye out for the one-acre native plant butterfly garden, especially vibrant in April and May.
Yes, there are easy, family-friendly options. The Lake Mission Viejo – Lake Mission Viejo loop from Trabuco Hills High School is an easy 3 km route, perfect for a relaxed outing. Another easy option is the Hidden Hills Bluff Trail Loop, which is just over 5 km and offers gentle terrain suitable for families.
For a moderate challenge, consider the Tijeras Creek Trail and Westridge Loop. This route covers nearly 8 km with some elevation gain, offering a good workout and scenic views. Another moderate option is the Colinas Ridge Trail, which is about 7 km long and provides a rewarding experience.
Thomas F. Riley Wilderness Park generally allows dogs on trails, but they must be kept on a leash. It's always best to check specific trail regulations within the park or on the Orange County Parks website for any updates or restrictions before you go. Ensure your dog is comfortable with public transport if you plan to use the bus.
Spring (April-May) is particularly beautiful, especially for viewing the native plant butterfly garden in full bloom. Fall offers pleasant temperatures and clear skies. While the park is open year-round, summer can be hot, so early morning or late afternoon hikes are recommended. Winter can bring cooler, sometimes wet, conditions, but the trails remain accessible.
Yes, several routes in the area are circular and can be accessed via bus. The Lake Mission Viejo – Lake Mission Viejo loop from Trabuco Hills High School is a great example of an easy loop. For a slightly longer option, the Tijeras Creek Trail and Westridge Loop also offers a circular path.
Many trails lead to scenic overlooks. While specific bus-accessible routes might vary, the park features notable viewpoints like Skink Vista Point and Horned Toad Vista Point, which offer expansive views of Orange County and the Santa Ana Mountains. The Ranger Station also provides interpretive displays about the park's wildlife and history.
The area is highly rated by the komoot community, with an average score of 4.8 stars. Reviewers often praise the park's well-maintained trails, the peaceful natural environment, and the diverse scenery, from oak groves to rolling hills. The convenience of public transport access for these routes is also a frequently appreciated aspect.
For official information regarding park facilities, regulations, and any current alerts, you can visit the Orange County Parks website: oc.gov.
Given the varied terrain and potential for sun exposure, it's advisable to wear comfortable hiking shoes, layered clothing, and a hat. Sunscreen and plenty of water are essential, especially during warmer months. Depending on the season, a light jacket or rain gear might also be useful.
While specific facilities might not be directly on every trail, Thomas F. Riley Wilderness Park offers amenities such as picnic tables, portable restrooms, and drinking fountains, typically located near trailheads or the Ranger Station. It's always a good idea to carry enough water for your hike, especially on longer routes.


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