Zero Gravity Canyon

In the San Rafael Swell, not near Moab — despite what a lot of pages including some Moab-focused ones imply. It sits between I-70 and Hanksville in the northern Swell, near the Goblin Valley area, roughly two to two and a half hours from Moab each way. The approach is on dirt roads requiring four-wheel drive. It is genuinely bookable as a day trip from Moab, but it is a day trip, not an afternoon.

It carries an ACA rating of 3B — technical, with water but no current — and the established beta tags it as both beginner and intermediate. That dual tag is accurate: the movement is approachable and the canyon is short at 2.8 miles and two to three hours, but it contains a semi-keeper pothole that requires a partner assist or pack toss. The beta describes it as a good beginner canyon with competent leadership, and specifically not a good candidate to solo unless you have done it before.

A keeper pothole is a water-filled bowl with walls that overhang or are too smooth to climb — easy to drop into and genuinely difficult to exit. A semi-keeper usually goes with assistance but not always, and not for every body type or party. Zero G has one, and it is the defining feature of the canyon. Go with at least three people, know how to perform a partner assist and a pack toss before you arrive, and carry rope even though the canyon can sometimes be done with zero rappels.

Zero to two, depending on conditions and party. The established beta lists the biggest rappel at 15 metres, about 50 feet, while the operator who guides the canyon describes finishing with a rappel of roughly 70 feet into a final pool — a difference likely down to rigging. The final section requires a rappel for larger canyoneers while smaller parties may downclimb it. Carry rope for the longer figure regardless, because the pothole escape may need it too.

Enough for a rappel in the 50 to 70 foot range with your chosen rigging, plus a pull cord. You will see 100 feet suggested online, which is marginal at best — a doubled rope needs roughly twice the drop height, and you want margin available for a pothole escape as well. Do not plan around the canyon going at zero rappels just because the beta says it sometimes does.

In cold weather, yes — the established beta lists standard technical gear plus a wetsuit during cold conditions. The canyon generally holds quite a few pools with wading and sometimes swimming, and standing water in shaded narrows stays cold well beyond what the air temperature suggests. In high summer most parties are comfortable without one, and the water becomes the appeal rather than the obstacle.

No. Zero G is on BLM land in the San Rafael Swell and requires no permit for a private party. What it does require is a four-wheel drive vehicle for the final dirt-road approach, and a downloaded GPX track — there is effectively no cell service out there and the approach is easy to get wrong.

Yes. At least one Moab operator runs it as a three-quarter day private trip from $239 per person with a two person minimum, including round-trip transport from your Moab accommodation, all technical gear, instruction and permits. The minimum age is 7, which is lower than any canyon near Moab itself, though the operator asks you to call and confirm for children under 12. Going guided solves both the vehicle problem and the pothole problem at once.

Unclear, and worth asking about before you book. The operator that guides Zero Gravity describes it as "often called Zero G (or Little Sinbad)." Zero G is definitely the same canyon as Zero Gravity. Whether it is the same as the Little Sinbad that a different Moab operator runs as a separate three-quarter day trip is less certain — both are in the San Rafael Swell, both involve mandatory swims and tight sections, and both sit a similar distance from Moab. If you are comparing two trips, ask which drainage you would actually descend.

Two to three hours in the canyon for a competent self-guided party covering the 2.8 mile route. Add roughly four to five hours of driving round trip from Moab, plus the approach hike, and it becomes a full day. Guided trips run it as a three-quarter day with transport included. Because the canyon itself is short, most parties pair it with a nearby route such as the North Fork of Iron Wash or Lower Eardley Canyon.

Spring, summer and autumn. High summer is genuinely pleasant here because the pools and shade make it cooler than the surrounding desert, and it is one of the canyons people specifically choose in the heat. Spring and autumn need a wetsuit for the cold water. Winter is not recommended — cold standing water in shaded narrows is a hypothermia risk. Avoid it entirely if rain is anywhere in the forecast; photographs exist of this canyon the day after a flash flood.

On its own, probably not — two hours of canyon for four to five hours of driving is a poor ratio, and there are excellent narrows twenty minutes from Moab in Entrajo. It becomes worth it in two situations: if you pair it with another Swell canyon or Goblin Valley to make a full day, or if you are already travelling between I-70 and Hanksville, in which case it is an outstanding side trip. It is also worth it as a guided trip, where the transport and the day are handled for you.