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Routes
Hiking trails & Routes
United States
California
Sonoma County

Islands in the Sky, Full Monty, and Fern Tree Loop

Routes
Hiking trails & Routes
United States
California
Sonoma County

Islands in the Sky, Full Monty, and Fern Tree Loop

Moderate

3.4

(5)

29

hikers

Islands in the Sky, Full Monty, and Fern Tree Loop

02:14

7.01km

280m

Hiking

Hike the moderate 4.4-mile Islands in the Sky, Full Monty, and Fern Tree Loop for redwoods, ocean views, and unique fern-covered trees.

Last updated: February 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Waypoints

A

Start point

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1

2.72 km

Lunch spot with a breathtaking view

Highlight • Viewpoint

B

7.01 km

End point

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Way Types & Surfaces

Way Types

3.55 km

3.46 km

Surfaces

5.65 km

727 m

601 m

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Elevation

Elevation

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Weather

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Saturday 11 July

22°C

9°C

-- %

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Frequently Asked Questions

Where is the trailhead and parking for this loop?

The trailhead for the Islands in the Sky, Full Monty, and Fern Tree Loop is located within Monte Rio Redwoods Regional Park and Open Space Preserve, near Duncans Mills, California. Parking is typically available at the designated park entrance.

Is this trail dog-friendly?

Regulations for dogs can vary within Monte Rio Redwoods Regional Park and Open Space Preserve. It's best to check the park's official website or signage at the trailhead for the most current rules regarding dogs, including leash requirements.

What is the best time of year to hike this route?

The trail offers diverse scenery throughout the year. Spring and fall generally provide pleasant temperatures and vibrant landscapes. Winter conditions might affect accessibility, so checking local weather before heading out is always a good idea.

Are there any permits or entrance fees required for Monte Rio Redwoods Regional Park?

Access to Monte Rio Redwoods Regional Park and Open Space Preserve may involve entrance fees or require permits, depending on the specific activities or facilities used. We recommend checking the official park website for current fee schedules and permit requirements before your visit.

What is the terrain like on the Islands in the Sky, Full Monty, and Fern Tree Loop?

The terrain is quite varied. You'll start on a fire road, then climb through dense redwood forests with fern-covered floors. The trail transitions to open plains with rolling hills before returning to the redwood forest via another fire road. Expect some climbs throughout the route.

What can I see along the route?

This trail offers a variety of picturesque views. You'll pass through towering redwood trees and areas rich with ferns. A significant highlight is the 'Fern Tree Viewpoint,' where you can observe a large Douglas Fir pine covered in ferns. The 'Full Monty' section provides expansive views of the Pacific Ocean across rolling hills. Don't miss the Lunch spot with a breathtaking view.

Does the trail intersect other well-known paths?

Yes, the route also passes through sections of the Fern Tree and Badger Hill Vista Trail, the Full Monty Trail, the Little Rock Trail, the Nutmeg Trail, and the Islands in the Sky Vista Loop.

Is this loop suitable for beginner hikers?

While described as a 'charmer,' the 4-mile loop involves climbs, suggesting a moderate difficulty level. Beginners with a reasonable level of fitness should be able to complete it, but be prepared for some physical exertion.

What should I wear for hiking this trail, especially in spring?

Given the diverse terrain and potential for varying conditions, dressing in layers is advisable. Comfortable hiking shoes with good grip are essential. In spring, expect cooler, potentially damp conditions in the redwood forests and sunnier, warmer conditions in the open plains. A light rain jacket might also be useful.

Are there any specific viewpoints or landmarks to look out for?

Absolutely! The 'Fern Tree Viewpoint' is a unique landmark featuring a massive Douglas Fir adorned with ferns. The 'Full Monty' section offers panoramic views of the Pacific Ocean. Also, keep an eye out for the Lunch spot with a breathtaking view, perfect for a break.

What's an insider tip for hiking this loop?

To fully appreciate the dramatic transition from dense redwood forests to open plains with ocean views, consider starting your hike early in the morning. This allows you to experience the cooler, misty forest before the sun fully illuminates the expansive 'islands in the sky' vistas.

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