2.5
(22)
69
hikers
04:24
16.9km
120m
Hiking
Hike the moderate 10.5 miles (16.9 km) Three Sisters Loop in Lava Beds National Monument, featuring volcanic terrain and Skull Cave.
Last updated: February 26, 2026
Waypoints
Start point
Parking
Get Directions
37 m
Highlight • Cave
Tip by
3.40 km
Highlight (Segment) • Volcano
Tip by
14.5 km
Public Water Fountain
Public Water Fountain
16.9 km
End point
Parking
Way Types & Surfaces
Way Types
14.9 km
1.46 km
304 m
229 m
Surfaces
13.5 km
1.77 km
1.34 km
229 m
Sign up to see more specific route details
Sign up for free
Elevation
Highest point (1,420 m)
Lowest point (1,310 m)
Sign up to see more specific route details
Sign up for free
Weather
Powered by Foreca
Friday 15 May
18°C
3°C
0 %
Additional weather tips
Max wind speed: 30.0 km/h
to get more detailed weather forecasts along your route
This route was planned by komoot.
The full Three Sisters Loop is a challenging multi-day backpacking trip, typically ranging from 46 to 50 miles (74-80 km) with around 7,000 feet (2,130 m) of cumulative elevation gain. Most hikers complete it in 3 to 5 days. The Komoot tour provided for this page, however, covers a shorter, 16.8 km (10.4 miles) section, which can be completed in a single day.
The trail offers incredibly diverse terrain. You'll hike through lush ponderosa pine forests, vibrant alpine wildflower meadows, and ancient lava flows. Expect rugged pumice fields and glossy obsidian streams, which can be tough on footwear. Sections also pass through the recovering 2012 Pole Creek Burn area. The west side features more forests and meadows, while the Wikiup Plains on the south side are exposed to the sun.
The ideal time to hike the Three Sisters Loop is generally between mid-July and October. This period helps avoid significant snow cover and reduces issues with mosquitoes, which can be prevalent earlier in the season.
Yes, permits are required for overnight trips and often for day use in the Three Sisters Wilderness, especially during peak season. These can be competitive, so it's advisable to plan and reserve well in advance. Additionally, as this trail is located within Lava Beds National Monument, standard park entrance fees apply. Check the official park website for current fee schedules and specific regulations.
Dogs are generally allowed on the Three Sisters Loop and within the Three Sisters Wilderness. However, they must be kept on a leash at all times to protect wildlife and ensure a pleasant experience for all hikers. Always pack out all pet waste.
Several trailheads provide access to the Three Sisters Loop, including those near the historic Dee Wright Observatory. Parking availability can vary, especially during peak season, so arriving early is recommended. Some trailheads may also have shuttle services available, particularly from nearby towns like Bend or Sisters, Oregon, to help manage parking and access.
The loop offers spectacular panoramic views of the South, Middle, and North Sister volcanoes. You'll see numerous alpine lakes like Green Lake and Moraine Lake, Skull Cave, and the Three Sisters Trail itself. Distant views of other Cascade peaks like Broken Top and Mount Jefferson are also possible. The historic Dee Wright Observatory provides expansive views of the volcanic landscape.
Yes, the route utilizes sections of several official trails. You will hike along parts of the Three Sisters Trail, Lyons Trail, Missing Link Trail, Bunchgrass Trail, Craig Cave Road, Caldwell Minor Trail, and Symbol Bridge Trail.
For a multi-day backpacking trip, essential gear includes sturdy hiking boots (preferably broken-in), a reliable backpack, a tent, sleeping bag, cooking equipment, sufficient food, and a water filter or purification tablets. Layered clothing is crucial due to varying temperatures, and rain gear is always recommended. Don't forget navigation tools like a map, compass, and a GPS app, as well as sun protection and insect repellent.
While the full Three Sisters Loop is a challenging multi-day trip, there are shorter, more accessible day hikes in the surrounding Three Sisters Wilderness that offer similar scenic beauty. For families or those seeking a less strenuous experience, consider exploring shorter out-and-back trails to specific lakes or viewpoints, or the 16.8 km Komoot tour provided here, which offers a taste of the area without the full commitment.
When hiking within Lava Beds National Monument, it's important to stay on marked trails, pack out all trash, and respect wildlife. Collecting natural or cultural artifacts is prohibited. Specific regulations may apply to cave access, camping, and fire restrictions, so always check the official park website or visitor center for the most current guidelines before your visit.