9 miles round trip (bottom-up) or 9.5 miles one-way (top-down) +steep canyon descent at the start, regained on the exit climb elev very strenuous Best: Jun-Oct, permit required year-round

The Subway in Zion: Permit Lottery, Bottom-Up Route, and Who It's Actually For

How the Subway permit lottery works on recreation.gov, what the 9-mile bottom-up route actually demands, and why top-down is canyoneering, not hiking.

HikeDesert Team

Plan This Hike

Distance9 miles round trip (bottom-up) or 9.5 miles one-way (top-down)
Elevation Gainsteep canyon descent at the start, regained on the exit climb
Difficultyvery strenuous
Best SeasonJun-Oct, permit required year-round
PermitRequired
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On This Page

The photo is everywhere. A glowing tube of sculpted red sandstone with green pools along the floor, somewhere in Zion. What the photo never shows is the four and a half miles of trail-less creek bottom between that tube and your car, or the lottery you entered months earlier to be allowed in at all.

So here is the claim this whole guide rests on: the Subway is not something you add to a Zion trip. You either build the trip around it, permit lottery and all, or you do a different hike and have a better day.

The Permit Comes First, Year-Round

There is no walk-up version of the Subway. A wilderness permit is required every day of the year, for both routes, and the maximum group size is 12. The route is day-use only. Camping in the Left Fork is prohibited.

Two pages settle every question this article cannot:

If anything below conflicts with those pages on the day you read this, the pages win. Permit systems shift, and this one already moved once when Zion brought its wilderness lotteries onto recreation.gov.

How the Two Lotteries Work

As of June 2026, you have three paths to a permit, and they run in order.

The seasonal lottery is the planning path. You apply on recreation.gov up to four months before your trip with up to four date choices, and you get one application per person, per canyon, per season. Results go out by email on the 27th of the month. The application fee is $6 and you do not get it back if you lose. If you win, there is also a $10 per person recreation fee, which is refundable.

The daily lottery is the flexibility path. Two days before your target date, you can apply between 12:00 am and 3:00 pm Mountain Time. The drawing runs at 3:00 pm and everyone hears by 4:00 pm the same day. If you are staying near Springdale with loose plans, this drawing is worth entering every day you could plausibly go.

Walk-in is the leftovers path. If spaces remain after both drawings, they can be claimed the day before or the day of the trip.

One step trips people even after they win. The lottery result is a reservation, not a permit. The person named on it has to pick up the actual permit at the Wilderness Desk in the Zion Canyon Visitor Center, in person, and the desk wants you to budget at least 20 minutes. Build that stop into your morning or do it the day before. For how the Subway drawing compares to the Wave, Havasupai, and the rest of the region’s systems, the Southwest hiking permits guide lays out the full map.

Bottom-Up: The Version Most People Mean

The bottom-up route starts and ends at the Left Fork Trailhead on Kolob Terrace Road, about a 30-minute drive from Springdale on the quieter west side of the park. It is roughly 9 miles round trip, and NPS rates it very strenuous.

The shape of the day matters more than the mileage. You drop steeply off the rim into the Left Fork drainage on a loose, eroded descent. From the canyon floor there is no maintained trail. You work upstream through ankle to knee deep water, across slick creek cobble, and over boulder fields, picking your own line and losing the use path constantly. The Subway formation is the turnaround point. Then you do all of it again in reverse, and the climb back out of the canyon lands at the end of the day, when your legs are done and the light is going.

Route finding here is a real skill, not a buzzword. NPS recommends carrying a detailed route description, and the habits in route finding when the trail disappears are exactly what this drainage tests. Footwear is the other decision that shapes the day. Wet rubber on wet rock, all day, is the whole game, and the water shoes guide for canyon hiking covers what works.

Top-Down Is Canyoneering, Not a Hike

The top-down route runs 9.5 miles from the Wildcat Canyon Trailhead through the technical upper section of the Left Fork and exits at the same trailhead the bottom-up uses. NPS lists the requirements plainly: rappelling skills and at least 60 feet of rope, plus swims through several deep pools of very cold, debris-filled water.

Read that as a hard line, because it is one. If you are wondering whether you can manage the rappels without prior experience, the answer is no, and the Left Fork is the wrong place to find out otherwise. A permit checks your reservation, not your competence. This article does not teach anchors, rope work, or pothole escapes, and no article should be your canyoneering instructor. If the top-down is the goal, get real instruction or hire a guide service for a training canyon first, then come back with the skills.

The cold is its own hazard on this route. Those pools stay cold in midsummer, and immersion strips body heat far faster than air. The mechanics and warning signs are covered in the desert hypothermia guide, and they apply in full to a canyon you cannot exit quickly.

Most People Get This Wrong: Bottom-Up Does Not Mean Easy

The route names sort people into the wrong boxes. Hikers hear that top-down is the technical version and conclude that bottom-up is the casual one. Bottom-up is the non-technical version. It is not a casual one.

Nine untracked miles is a different unit of effort than nine miles of trail. Parties who would cruise the Narrows bottom-up day hike in five hours get surprised here, because the Narrows hands you one obvious line up the river while the Left Fork makes you choose every step. Ankle sprains on greasy cobble, slow boulder problems, and a dozen small route mistakes add up. Set a turnaround time before you leave the car. The Subway formation does not get a vote. If the clock says turn around short of it, turn around, because the exit climb in the dark with a dead headlamp is the standard shape of a Left Fork rescue call.

Flood Risk Is the Real Gate

The permit tells you whether you may enter. The weather tells you whether you should. Those are different questions, and only one of them is decided by lottery.

The Left Fork is a drainage, and it collects water from country you cannot see from the canyon floor. Clear skies over your head can mean deadly flood conditions building from a storm miles upstream. The rule this site applies to every slot and drainage applies here without exception: if rain is in the forecast for any part of the watershed, do not go in. Not with a permit you waited four months for. Not with a group that flew in for it. The canyon will be there for the next lottery.

Run the live flood checklist the morning of your trip, and read the slot canyon safety guide before you ever apply, because it explains the escape-route problem that makes drainages like this unforgiving. Inside the canyon, rising water, a sudden roar, or water turning muddy brown means get to the highest ground available immediately. None of these habits guarantee a safe outcome. No canyon day is without risk. They are how you stop stacking risks on top of each other.

Who Should Skip It

An honest list, because the lottery fee is real money and your Zion days are limited:

  • Anyone who mainly wants the photo. The formation is a few hundred feet of a nine-mile day. If the picture is the point, the effort-to-reward math is bad.
  • First-time Zion visitors with two or three days. The shuttle-corridor classics in the best hikes in Zion guide deliver more park per day, with no lottery.
  • Anyone uneasy on wet, uneven, ankle-rolling terrain for hours. The Left Fork is that terrain, continuously.
  • Parties on a fixed date with no weather flexibility. A monsoon-season forecast can cancel your one shot, and the right response to that forecast is cancellation.
  • Anyone eyeing top-down without rappelling experience. Covered above. The answer stays no.

Who is it actually for? Strong parties who have already done Zion’s trail classics, who like navigation problems more than summit photos, and who can hold a turnaround time. For that hiker, the Subway is one of the best full days in the park.

Go or No-Go Checklist

Run this the morning of your permit date. Any single no means you do not go.

  • Permit picked up in person at the Wilderness Desk, in the named applicant’s hands.
  • Zero rain in the forecast for any part of the North Creek watershed, checked today, not yesterday.
  • Live flood checklist passed this morning.
  • Every person in the group fit for 9 untracked miles, and honest about it.
  • Turnaround time set, said out loud, and agreed before leaving the trailhead.
  • Footwear with wet-rock grip, a headlamp per person, and warm layers for cold water and shade.
  • Someone outside the group knows your route and your exit-by time.

Permit rules, fees, and lottery windows in this guide were checked against the NPS Subway page and recreation.gov in June 2026. Verify them before your own trip. They change, and the gate does not care what an article said.

Frequently Asked Questions

Do you need a permit for the Subway in Zion?

Yes, a wilderness permit is required year-round for both routes, with no walk-up exceptions. As of June 2026 you get one through the seasonal lottery on recreation.gov (up to four months ahead), the daily lottery two days before your trip, or leftover walk-in spots if any remain. Winning is not the end of it. The named applicant picks up the physical permit in person at the Zion Canyon Visitor Center Wilderness Desk. Verify current rules on the NPS Subway page before planning.

What is the difference between bottom-up and top-down on the Subway?

Bottom-up is a 9-mile round trip from the Left Fork Trailhead with no maintained trail, repeated creek crossings, boulder fields, and route finding. NPS rates it very strenuous, but it requires no ropes. Top-down is a 9.5-mile through-route from the Wildcat Canyon Trailhead that requires rappelling skills, at least 60 feet of rope, and swims through deep pools of very cold, debris-filled water. Top-down is technical canyoneering, not a hike.

How hard is it to win a Subway permit?

It depends on season and day of week, and the park does not publish odds you should plan around. The practical answer is to treat it like other Southwest lotteries: apply with all four date choices in the seasonal lottery, prefer weekdays, and use the daily lottery two days out if your trip has flexibility. The $6 application fee is non-refundable whether you win or not, so apply for dates you would actually use.

How long does the bottom-up Subway hike take?

Plan on a full day. Nine miles with no trail goes far slower than nine miles on one. The route descends steeply into the canyon, then works upstream through creek crossings, slick rock, and boulder fields to the Subway formation, and you return the same way, finishing with the climb back out. Set a turnaround time before you start and honor it, because finishing that exit climb in the dark is how a hard day becomes a rescue call.

HikeDesert Team