Muir Woods Hiking Trails: A Guide by Length and Difficulty

Muir Woods packs one of the last old-growth coastal redwood groves near a major American city into a canyon barely a mile wide, and that geography shapes every trail decision here. The park isn’t large, but its trails split sharply into two tiers: a flat, paved, wheelchair-friendly loop that absorbs nearly all the foot traffic, and a set of unpaved routes climbing the canyon walls that most day visitors never reach. Knowing the difference before you arrive at Muir Woods is the single biggest factor in whether your visit feels like a quiet redwood cathedral or a shuffling queue.

This guide breaks down every maintained trail by length, difficulty and surface, and points out exactly where the crowd thins out — useful whether you’re visiting independently or as part of a tour of Muir Woods National Park from Sausalito.

The trail network, at a glance

Trail	Length (round trip)	Difficulty	Surface
Main Trail (entrance to Bridge 2)	~1 mile (1.6 km)	Easy	Paved, flat
Main Trail to Cathedral Grove loop	~1.5 miles (2.4 km)	Easy	Paved + packed dirt
Hillside Trail loop	~2 miles (3.2 km)	Moderate	Dirt, some grade
Ben Johnson Trail loop	~3 miles (4.8 km)	Moderate-strenuous	Dirt, sustained climb
Dipsea Trail extension	~4 miles (6.4 km)	Strenuous	Dirt, steep sections
Full Dipsea-Ben Johnson-Bootjack loop	~6 miles (9.7 km)	Strenuous	Dirt, ~1,400 ft gain

These figures are typical round-trip distances from the entrance; exact numbers vary slightly depending on which connector paths you take, since several trails intersect more than once.

Easy: the Main Trail (paved section)

The Main Trail is what most people mean when they say “the Muir Woods trail,” and it’s genuinely the easiest old-growth redwood walk in the Bay Area. From the entrance near the visitor center, the path is paved and largely flat for its first half-mile, running alongside Redwood Creek past some of the tallest trees in the grove. It’s wide, boardwalked in the wettest sections, and accessible to strollers and wheelchairs — which is exactly why it’s also the most congested stretch in the park, especially between 10am and 3pm.

Most visitors walk out to Bridge 2 or Bridge 3, loop back on the opposite bank, and call it a visit. That out-and-back or short loop covers roughly a mile and takes 30-45 minutes at a relaxed pace, with frequent stops for photos. It’s the right choice if you have limited mobility, young kids, or only 45 minutes before a shuttle or tour departs. It is not the right choice if you want the grove to yourselves — plan on sharing the path with dozens of other groups no matter what time you go, though arriving with the very first shuttle or parking reservation of the morning noticeably thins the crowd for the first 20-30 minutes.

Easy-moderate: Cathedral Grove loop

Push slightly past the paved section and the crowds start to drop. Cathedral Grove, reached by continuing on the Main Trail past Bridge 2, is a hushed, cathedral-like stand of especially tall redwoods that’s often designated a quiet zone — a small posted request to keep voices down, which most visitors respect. The surface here transitions from pavement to packed dirt, and a loop that continues past the grove and returns via the opposite bank of Redwood Creek runs about 1.5 miles total. It’s still an easy walk with minimal elevation change, but it demands normal footwear rather than sandals, since roots and uneven dirt start to appear.

This is the sweet spot for a lot of visitors: still an easy, short walk, but past the point where the paved-section crowds thin out. If you’re short on time and want one upgrade over the flat entrance loop, this is it.

Moderate: Hillside Trail loop

The Hillside Trail branches up from the canyon floor and climbs the eastern slope before rejoining the Main Trail further along, forming a loop of roughly 2 miles. It’s a genuine step up in effort — a sustained, moderate grade rather than the flat valley floor — and the payoff is a different vantage point on the grove, looking down through the canopy rather than straight up trunks from below. Foot traffic drops sharply once you’re on the climb; this is a realistic option for visitors who want more solitude without committing to a half-day hike.

Expect an hour to 90 minutes for the full loop at a moderate pace, dirt surface throughout, and some short, steeper pitches near the top of the climb. Sturdy shoes are worth it here — the trail can be slick after rain, and Marin’s fog and coastal moisture mean the ground rarely dries out completely even in summer.

Moderate-strenuous: Ben Johnson Trail loop

For a more substantial hike that still returns to the entrance in a single loop, the Ben Johnson Trail climbs out of the Muir Woods canyon and connects into the surrounding Mount Tamalpais watershed lands before looping back down. Round trip, this runs about 3 miles with sustained climbing — figure 1.5 to 2.5 hours depending on fitness and how many stops you make. The reward is real quiet: once you’re above the canyon floor, you’ll likely see only a handful of other hikers, a sharp contrast to the paved section below.

This trail exits the immediate redwood grove into mixed evergreen and open hillside terrain, so the scenery shifts from cathedral-like canopy to broader views back down into the canyon and, on clear days, glimpses toward the coast. It connects with the wider Mount Tamalpais State Park trail network, so pay attention to trail junctions and signage — it’s easy to end up on a connector trail heading further than planned if you’re not tracking your route.

Strenuous: Dipsea Trail extension and the full loop

The Dipsea Trail is Marin County’s famous cross-country route, running all the way from Mill Valley to Stinson Beach, and a section of it passes directly through Muir Woods territory. Using it as an extension from the park adds meaningful mileage and elevation: a loop incorporating the Dipsea Trail typically runs about 4 miles round trip with steep, sustained sections, particularly on the climb up from the canyon floor.

Combine the Dipsea Trail with the Ben Johnson Trail and the Bootjack Trail for the longest realistic loop from the Muir Woods entrance — roughly 6 miles total with about 1,400 feet (425 m) of cumulative elevation gain. This is a genuine half-day hike, not a casual add-on: budget 3-4 hours, bring water and layers (temperatures swing noticeably between the shaded canyon floor and exposed ridgeline), and check trail conditions before setting out, since Marin’s weather can shift quickly even when San Francisco itself is clear. This route effectively links Muir Woods into the broader Mount Tamalpais and Mount Tamalpais State Park hiking network, an option worth knowing about if the redwood grove alone leaves you wanting more elevation and views. Point Reyes National Seashore, roughly an hour further north, is a separate and much larger trail system for hikers who want to build a full day of hiking around this corner of Marin.

How to actually avoid the crowds

Muir Woods draws heavy foot traffic because of its combination of fame, proximity to San Francisco, and a genuinely small footprint — the paved Main Trail section is only about a quarter-mile wide as a corridor, so even moderate visitor numbers feel congested there. A few concrete tactics make a real difference:

• Book the first shuttle or parking slot of the day. Since access requires a timed-entry reservation, the earliest available slot consistently has the thinnest crowds — mornings before 9am see a fraction of midday traffic.
• Walk past Bridge 2 before slowing down. The overwhelming majority of visitors stop within the first half-mile. Simply continuing past Cathedral Grove removes most of the crowd without adding real difficulty.
• Climb onto any dirt trail. The moment you leave the paved loop for the Hillside, Ben Johnson or Dipsea trails, visitor density drops sharply — these routes see a small fraction of Main Trail traffic even at midday.
• Visit on a weekday if your schedule allows. Weekend mornings, especially in summer and around holidays, fill reservation slots fastest and see the heaviest trail congestion.
• Avoid the early-afternoon window. Between roughly 11am and 2pm, tour buses and day-trippers from San Francisco converge on the park simultaneously; arriving by 8:30am or visiting after 3pm avoids this overlap.

Practical hiking notes

Muir Woods sits inside a narrow, shaded canyon, so conditions differ from what you might expect on a sunny Bay Area day. Redwood canopy blocks direct sun almost everywhere on the trails, keeping temperatures noticeably cooler than San Francisco or inland Marin — a light jacket is worth carrying even in summer. The ground rarely fully dries, so expect some mud or damp patches on the unpaved trails year-round, more so after winter rains. Cell service is unreliable to nonexistent throughout the canyon, so download or screenshot a trail map before you arrive rather than counting on a live map.

There are restrooms near the entrance and no food service inside the park itself, so bring water and snacks if you’re tackling anything beyond the paved loop. Dogs are not permitted on any Muir Woods trail, including the paved section — a rule enforced to protect the fragile root systems and understory of the old-growth grove.

If you’d rather skip the logistics of parking reservations and shuttle timing altogether, a guided tour to Muir Woods handles transportation and often bundles in a stop in Sausalito on the way back, which pairs naturally with the redwoods for a half-day outside the city. a half-day trip from San Francisco that includes guided time in Muir Woods and a stop in Sausalito removes the parking-reservation puzzle entirely, which matters given how far in advance those slots can sell out.

For visitors who want the redwoods paired with a bike ride rather than a longer hike, a combined outing that pairs a Muir Woods visit with a Golden Gate Bridge bike ride covers two of Marin’s signature experiences in a single day without a rental car. And for a smaller-group option focused purely on the grove itself, a small-group guided tour departing directly from San Francisco is worth comparing against the self-drive option, particularly if you’d rather not deal with Highway 1’s narrow curves on the way in.

Planning the rest of your visit

Muir Woods works well as a half-day outing on its own, or as one stop combined with nearby Marin destinations. Most visitors pair it with Sausalito for lunch and bay views, or extend north toward Mount Tamalpais and Stinson Beach for a fuller day in the outdoors. If you’re deciding how to actually get there — self-drive, guided tour, or the limited public transit options — the getting to Muir Woods guide walks through the tradeoffs, and the tickets and parking guide covers the reservation system in detail, since entry (not the trails themselves) is the part of a Muir Woods visit most likely to trip up first-time planners.

For hikers who want more elevation and longer trail systems than Muir Woods alone offers, the Mount Tamalpais and Marin coast hiking options extend naturally from the Ben Johnson and Dipsea routes described above, and Lands End’s coastal trail back in San Francisco offers a different kind of hike — ocean cliffs rather than redwood canyon — if you’re building out a hiking-focused visit to the Bay Area. Those weighing Muir Woods against a longer day in the Marin day trip itinerary will find the trail choices above apply whether you’re visiting independently or on a private tour with flexible timing.

Whichever trail combination you choose, the core trade-off stays the same throughout Muir Woods: distance from the entrance buys you quiet. The paved quarter-mile sees the crowds; the dirt trails climbing out of the canyon rarely do.