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Routes
Hiking trails & Routes
Santa Cruz County
Aptos

Old Growth Loop Trail

Easy

Old Growth Loop Trail

00:23

1.29km

40m

Hiking

Hike the easy 0.8-mile Old Growth Loop Trail in Nisene Marks State Park, featuring towering redwoods and the Wooden Bridge Over Aptos Creek.

Last updated: February 26, 2026

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Your route passes through a protected area

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Waypoints

A

Start point

Parking

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1

712 m

Wooden Bridge Over Aptos Creek

Highlight • Bridge

A small but sturdy bridge made out of wooden planks crosses Aptos Creek and links the starting point of Old Growth Loop Trail with its main loop.

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1.29 km

End point

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Way Types & Surfaces

Way Types

1.04 km

155 m

< 100 m

Surfaces

1.07 km

130 m

< 100 m

< 100 m

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Elevation

Elevation

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Weather

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Today

Monday 18 May

25°C

11°C

0 %

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Max wind speed: 18.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

How challenging is the Old Growth Loop Trail and how long does it typically take to complete?

The trail is generally considered moderate, featuring some steep grades and descents to and climbs from Aptos Creek. While the komoot data suggests a shorter duration, hikers should plan for approximately 1 to 1.5 hours to comfortably complete the 1.1-mile loop, allowing time to enjoy the scenery.

What kind of terrain can I expect on the trail and what are its main natural features?

You'll experience diverse terrain, from level sections bordered by wild ginger and western sword ferns to gradual uphill climbs along a seasonal creek canyon. The trail is renowned for its lush environment, featuring a rich riparian plant community along Aptos Creek, including redwoods, big-leaf maples, and various ferns. The canyon walls are often fern-covered, and the streambed itself is adorned with moss and ferns.

Where is the trailhead for the Old Growth Loop Trail and what are the parking options?

The trail can be accessed from the Emmett Reed Picnic Area within The Forest of Nisene Marks State Park. Parking is available at this location.

When is the best time of year to hike this trail?

The trail is beautiful year-round, but late summer offers vibrant gold colors from the big-leaf maples, contrasting beautifully with the evergreen redwoods. During the wet season, typically winter and spring, the Aptos Creek crossing can be challenging or dangerous if the seasonal bridge is not in place.

Are there any seasonal considerations for hiking the trail, especially regarding creek crossings?

Yes, during the wet season, the crossing over Aptos Creek can become challenging or even dangerous if the seasonal bridge is removed. In such cases, alternative routes like the Vienna Woods Trail to the Terrace Trail may be necessary to access the loop. Always check local conditions before heading out.

Is the Old Growth Loop Trail dog-friendly?

The provided information does not specify whether dogs are allowed on this particular trail. It's best to check the official regulations for The Forest of Nisene Marks State Park regarding pets before your visit.

Are there any permits or entrance fees required to access The Forest of Nisene Marks State Park?

Yes, The Forest of Nisene Marks State Park, where this trail is located, typically requires an entrance fee. You should check the official California State Parks website for current fee structures and any permit requirements.

What specific points of interest will I encounter along the route?

You'll be immersed in a forest of magnificent old-growth redwoods, some over 200 feet tall. Key highlights include the Wooden Bridge Over Aptos Creek, the unique 'Twisted Grove' with its unusually growing redwoods, and a hollow log surrounded by redwood sorrel. While the famous Advocate Tree fell in 2017, another dominating old-growth redwood remains nearby.

Does the trail intersect other well-known paths?

Yes, the route also passes through sections of the Split Stuff Trail, the Twisted Grove Trail, the Oak Ridge Trail, and The Advocate Tree Spur Trail.

Is this trail suitable for beginner hikers or families with children?

Given its moderate difficulty with some steep sections and potential creek crossing challenges during wet seasons, it might be more suitable for beginners who are reasonably fit or families with older children. Always assess your group's capabilities and current trail conditions before starting.

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