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Routes
Bike touring routes & trails
United States
Hawaiʻi County
Volcano

Sulphur Banks and Crater Rim Trail Loop

Easy

4.5

(7117)

19,583

riders

Sulphur Banks and Crater Rim Trail Loop

00:29

7.74km

80m

Cycling

Step onto the Sulphur Banks and Crater Rim Trail Loop for an immersive journey through Hawaiʻi Volcanoes National Park's dynamic landscape. You'll start at Haʻakulamanu (Sulphur Banks), where vibrant yellow sulfur crystals and red iron-tinged rocks steam constantly, filling the air with a distinct volcanic scent. The trail then transitions to a lush rainforest, offering dramatic open views of the vast Kīlauea Caldera and the distant peak of Mauna Loa, with steam rising from the ground as a constant reminder of the active geology beneath your feet.

This easy 4.8-mile (7.7 km) loop, with a gentle 258 feet (79 metres) of elevation gain, is best experienced on foot, taking approximately 28 minutes to complete. It's important to note that this route is generally not suitable for cycling near Kilauea volcano, as bicycles are restricted to designated paved routes within the park. Always check air quality conditions at the Kīlauea Visitor Center before starting, especially if you have health concerns.

What makes this trail truly special is its direct connection to the Earth's raw power, allowing you to witness geological processes firsthand. The stark contrast between the barren, steaming volcanic areas and the dense rainforest highlights the diverse ecosystems thriving in this unique environment. You'll gain a close-up perspective on the active geology of Kīlauea Volcano, including the significantly reshaped Halemaʻumaʻu Crater, making it a memorable experience for anyone interested in natural wonders.

Last updated: June 9, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Hawaiʻi Volcanoes National Park

Waypoints

A

Start point

Parking

Get Directions

1

2.85 km

Kīlauea Visitor Center

Highlight • Rest Area

The Kīlauea Visitor Center is the perfect place for hikers to learn about the park's geology via exhibits, films, and ranger activities. The Visitor Center also has the latest updates on volcanic activity and eruptions. The adjacent art museum showcases native Hawaiian culture.

Tip by

2

3.02 km

Sulphur Banks Trail

Highlight (Segment) • Trail

We began our trip to Volcanoes National Park with a leisurely cycle on the Sulphur Banks Trail. Mostly paved with some sections of wooden boardwalk.

Tip by

B

7.74 km

End point

Parking

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Way Types & Surfaces

Way Types

3.67 km

2.70 km

1.18 km

190 m

Surfaces

7.54 km

200 m

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Elevation

Elevation

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Weather

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Today

Friday 10 July

23°C

12°C

54 %

Additional weather tips

Max wind speed: 17.0 km/h

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Frequently Asked Questions

Can I cycle the Sulphur Banks and Crater Rim Trail Loop?

No, this loop is predominantly a hiking trail and is generally not suitable for touring cycling. Bicycles, including e-bikes, are restricted to designated paved routes within Hawaiʻi Volcanoes National Park, and this specific loop is not one of them. All other frontcountry and backcountry trails are closed to bicycles.

What is the terrain like on this trail?

The terrain varies. The Sulphur Banks portion features primarily paved paths and boardwalks, making it quite accessible. As you continue along the Crater Rim Trail section, you'll encounter unpaved footpaths, natural trails, and passages through lush rainforest. The trail does cross Crater Rim Drive at certain points.

What unique sights and smells can I expect?

You'll experience a dramatic volcanic landscape. The Sulphur Banks area is notable for its constantly steaming volcanic vents, vibrant colorful mineral deposits, and a distinct "rotten egg" smell due to the release of sulfur gases. Along the Crater Rim, you'll get spectacular panoramic views across Kīlauea Caldera, including the Halemaʻumaʻu crater, and sometimes see steam rising from the ground.

Where can I park to access the trail?

The trail is easily accessible from the Kīlauea Visitor Center parking lot within Hawaiʻi Volcanoes National Park. This is a convenient starting point for the loop.

Is the Sulphur Banks and Crater Rim Trail Loop suitable for families and beginners?

Yes, it's considered an easy hike, suitable for all fitness levels and skill sets, including families. The accessible paths and minimal elevation gain make it a popular choice for those new to hiking or with young children.

Are dogs allowed on this trail?

No, pets are generally not permitted on trails within Hawaiʻi Volcanoes National Park, including the Sulphur Banks and Crater Rim Trail Loop, due to the sensitive natural environment and potential hazards. Always check the latest park regulations for specific pet-friendly areas.

What is the best time of year to visit this area?

Hawaiʻi Volcanoes National Park is open year-round. The best time to visit the Sulphur Banks and Crater Rim Trail Loop is typically during the cooler, drier months from April to October. However, the park's weather can be unpredictable, so always be prepared for rain and varying temperatures regardless of the season.

Do I need to pay an entrance fee or get a permit for the park?

Yes, Hawaiʻi Volcanoes National Park charges an entrance fee. This fee covers entry for a certain number of days and can be paid at the park entrance. You do not need a separate permit specifically for hiking the Sulphur Banks and Crater Rim Trail Loop once you've entered the park.

What safety precautions should I take on the trail?

It is crucial to stay on marked paths, especially in the Sulphur Banks Trail area, as the ground can be thin over scorching hot steam. Volcanic gases are present, so if you have respiratory sensitivities, be aware. Wear sturdy shoes, bring water, and be prepared for changing weather conditions.

What other trails does this loop connect with?

This loop incorporates sections of several official trails. You'll be walking along parts of the Crater Rim Trail and the Sulfur Banks Trail. It also briefly crosses Crater Rim Drive and may touch upon the ʻIliahi Trail and Old Highway Road sections.

What should I bring for a hike on this loop?

Even though it's an easy and relatively short loop, it's wise to bring water, sun protection (hat, sunscreen), and rain gear as weather can change quickly. Comfortable, closed-toe walking shoes are essential, especially for the unpaved sections. A camera is also a must for the unique scenery!

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