Orcas Island hikes are not what people expect from the San Juans. The islands read as flat and coastal from the ferry, and then Orcas puts a 2,409-foot mountain in the middle of itself, wraps it in 5,000 acres of second-growth Douglas fir, and hides the only real waterfall in the archipelago at the bottom. You can walk a summit with a Cascades-grade view and a rainforest waterfall on the same day, on an island you can drive across in 40 minutes.
Here is every trail worth your time, with the numbers that actually matter.
The trails at a glance
| Trail | Distance | Gain | Difficulty | Pass |
|---|---|---|---|---|
| Cascade Falls | 0.8 mi RT | ~137 ft | Easy | Discover |
| Obstruction Pass Beach | 1.2 mi RT | ~150 ft | Easy | Discover |
| Cascade Lake Loop | 2.7 mi | Flat | Easy | Discover |
| Turtleback: Ship Peak Loop | 2.9 mi | 860 ft | Moderate | Free |
| Mountain Lake Loop | ~4 mi | Rolling | Easy | Discover |
| Little Summit | ~4 mi RT | ~1,000 ft | Moderate | Discover |
| Mount Constitution via Mountain Lake | 7 mi RT | ~1,500 ft | Strenuous | Discover |
| Turtleback north–south traverse | ~8 mi network | Rolling | Moderate | Free |
Everything inside Moran State Park needs a Discover Pass on the dashboard: $10 for a day, $45 for the year. It also covers Obstruction Pass State Park. Turtleback Mountain Preserve is Land Bank and San Juan Preservation Trust land and is free.
1. Mount Constitution, the one you came for
7 miles round trip · ~1,500 ft gain · strenuous · Moran State Park
The high point of the entire San Juan archipelago at 2,409 feet, topped by a stone observation tower the Civilian Conservation Corps built in the 1930s in the style of a Caucasian watchtower. From the platform, on a clear day, you get Mount Baker filling the eastern horizon, Rainier faint to the south, the Olympics west, Vancouver Island north, and the whole scatter of islands below.
The classic route climbs from Mountain Lake, about 3.5 miles one way with the summit roughly four miles in from the trailhead, and most people return on a loop past the lake rather than retracing. The grade is steady rather than brutal, and it is forested nearly the whole way, so there is no view payoff until the top. Go on a clear day or do not bother.
There is a paved road to the summit. Driving up is not cheating, and it is the right answer with small children, or if the weather is uncertain and you want to check the visibility before committing two hours of climbing to it.
2. Cascade Falls, the best 30 minutes on the island
0.8 miles round trip · ~137 ft gain · easy · Moran State Park
Cascade Falls on Orcas Island is 40 feet tall, the tallest waterfall in the San Juans, and it drops into a mossy fern-walled gorge that looks nothing like the rest of the island. Half an hour from the car, on a short well-built trail with a viewing platform. It is the one hike here that works for absolutely everyone.
Timing matters more than usual. The creek is fed by the lakes above and runs hardest from the spring melt through May, comes back with the autumn rain in October and November, and by late August in a dry year it can be a trickle. If the falls are the reason you are going, go in spring.
You can extend it upstream to Rustic Falls and Hidden Falls, both smaller, on the same trail system, which turns the half hour into a comfortable ninety minutes.
3. Turtleback Mountain Preserve, Ship Peak Loop
2.9 miles · 860 ft gain · moderate · free, no pass
The best value hike on the island. Turtleback sits on the western lobe, protected land rather than state park, and it faces the opposite direction to Constitution: west and south over President Channel, the west lobe and the water toward Vancouver Island. The summit meadow at Ship Peak is open grass and rock, which after the closed forest of Moran feels like a different island.
From the south trailhead the spur to Ship Peak comes at about 1.4 miles, and the loop back is 2.9 miles total. The wider preserve carries around eight miles of trail linking the north and south trailheads if you want to make a day of it. No pass, no fee, and far fewer people than Moran.
4. Obstruction Pass State Park
1.2 miles round trip to the beach · easy · Discover Pass
Down at the southeast tip, a short walk through madrona and fir to a cobble beach looking across Obstruction Pass at Obstruction Island and Blakely. This is the best shoreline access on Orcas and the most likely place to see a whale from land rather than a boat. The Highlands Trail adds a 1.5-mile loop down to the water and back up through the forest along the park boundary. There are a handful of walk-in and boat-in campsites here, first come.
5. Cascade Lake Loop
2.7 miles · flat · easy · Discover Pass
A flat forested circuit of the lake with a swimming beach, a dock and rental rowboats and kayaks at the north end. In July and August the lake genuinely warms up, which the surrounding salt water never does. This is the hike to do on an afternoon when someone in the group is done with hills.
6. Mountain Lake Loop
~4 miles · rolling · easy · Discover Pass
The bigger, quieter, higher lake. The loop runs about four miles of rolling shoreline trail through deep forest, and it doubles as the approach to Mount Constitution, so you can walk the loop, decide you have energy left, and turn uphill from the same junction.
7. Little Summit
~4 miles round trip · ~1,000 ft gain · moderate · Discover Pass
Constitution's smaller neighbour, with a south-facing viewpoint over Cascade Lake and out to the Olympics. Half the effort of the main summit and, on a busy August Saturday, roughly a tenth of the people. Often combined with the Mountain Lake loop as a longer figure-eight.
8. Judd Cove and the small shoreline walks
Under a mile · easy · free
Judd Cove Preserve near Olga is a short drop to a pocket beach with the remains of an old lime kiln. Not a destination hike, but a good twenty minutes if you are already on the east lobe for Cascade Falls, and it is free Land Bank land.
The one booking worth making before you arrive
The bioluminescent kayak tour out of Rosario only runs on the darkest nights around a new moon, which is a handful of dates a month, and the boats are small. Check which dates fall inside your trip before you lock the ferry in. See the new-moon dates and book it →
Getting to the trailheads
All of these need a vehicle or a bike. Moran State Park is 20 minutes from Eastsound and around 35 from the ferry landing, Turtleback is on the other lobe entirely, and Obstruction Pass is a further 15 minutes past Moran. There is no bus, effectively no rideshare, and one taxi.
If you are coming without a car, a bike is the answer, and note the terrain before you commit: the road out of the ferry landing climbs immediately, shoulders are narrow, and the summit road is a 2,409-foot climb. E-bike rental in Eastsound makes this an entirely different day. Hitchhiking is common on Orcas and islanders do stop, which is a real fallback, but do not plan a trailhead pickup around it.
What to know before you walk
- No bears, no cougars. There are no bears on Orcas Island and no large predators. Black-tailed deer, river otter, raccoon, bald eagles. Nothing you need to hang food from.
- Ticks are present in the grass and brush, especially spring through early summer. Check afterwards.
- Water: nothing potable on trail. Carry it.
- Cell signal is patchy across Moran and gone in the gorges. Download the map.
- Mud season runs November to April. The lake loops stay walkable, the Constitution trails get greasy, and the falls are at their best.
Orcas Island Hikes: 8 Trails Worth the Ferry FAQs
Mount Constitution, for the view. At 2,409 feet it is the highest point in the San Juan Islands, and the 1930s stone tower on the summit looks out at Mount Baker, Rainier, the Olympics and Vancouver Island. The classic climb from Mountain Lake is about 3.5 miles one way with roughly 1,500 feet of gain. If you want the best hike for the effort instead, Ship Peak in Turtleback Mountain Preserve is 2.9 miles, 860 feet, free, and far quieter.
0.8 miles round trip with about 137 feet of elevation gain, roughly 30 minutes to an hour. Cascade Falls is 40 feet tall and is the tallest waterfall in the San Juan Islands. It runs strongest in spring and after autumn rain, and can slow to a trickle in a dry late summer.
For Moran State Park and Obstruction Pass State Park, yes: a Washington Discover Pass, $10 for a day or $45 annual, displayed on the dashboard. Turtleback Mountain Preserve and the Land Bank preserves like Judd Cove are free.
Both work. A paved road runs to the summit, so you can drive up and walk the short paths around the tower. The hiking route from Mountain Lake is about 3.5 miles one way and roughly 1,500 feet of gain, usually done as a loop back past the lake.
No. There are no bears and no large predators on Orcas Island. The wildlife you will actually meet is black-tailed deer, river otter, raccoon, bald eagles and, from the shoreline, seals and occasionally whales. Ticks are the only real nuisance, mostly in spring.
Moran State Park alone holds over 30 miles of trail across five lakes and the Mount Constitution massif. Turtleback Mountain Preserve adds roughly eight miles, Obstruction Pass State Park a couple more, and there are several short Land Bank preserve walks around the shoreline.
Essentially yes, or a bike. Moran State Park is about 35 minutes from the ferry landing, Turtleback is on the opposite lobe, and there is no public bus, no meaningful rideshare and one on-island taxi. Bringing a vehicle on the ferry requires a free reservation in both directions; walking on with a bicycle does not.
