Many visitors who fly into Marrakech want at least one night in the Sahara. Then they find out there are two ergs, or seas of dunes, within reach, and it isn't obvious which one to pick. Both have camel rides, desert camps and skies full of stars. They are not the same trip.
Here is the short answer. Go to Merzouga, at the foot of the Erg Chebbi dunes, if you have three days, want the taller dunes and plan to continue north to Fes (also spelled Fez). Go to Erg Chegaga if you can give it closer to four days, don't mind a long off-road stretch, and care more about silence than comfort. The rest of this guide explains why.
Erg Chebbi vs Erg Chegaga at a glance
| Merzouga (Erg Chebbi) | Erg Chegaga | |
|---|---|---|
| Distance from Marrakech | About 560 km (350 miles) | About 445 km (275 miles) to M'Hamid, then 56 km (35 miles) off-road |
| Driving time | About 10 hours, split over two days | 8 to 9 hours to M'Hamid, then about 2 hours by 4x4 |
| Last stretch | Paved road to the edge of the sand | Desert tracks, 4x4 only |
| Dunes | Up to 150 m (490 ft), packed into one block 28 km (17 miles) long | Morocco's largest dune sea, spread out, some dunes over 50 m (165 ft) |
| Camps and crowds | Many camps, busy in peak season | Fewer camps, far apart |
| Shortest sensible trip | 3 days, 2 nights | 3 days (4 is better) |
| Best for | A first Sahara trip, families, a route on to Fes | Repeat visitors, photographers, anyone who wants quiet |
Merzouga and Erg Chebbi: the classic tall dunes
Erg Chebbi is the Sahara most people picture. Its dunes rise up to 150 meters (about 490 feet) above the flat, stony plain around them, in one compact block about 28 km (17 miles) long and 5 to 7 km wide, right by the Algerian border. The village of Merzouga sits on its western edge, with guesthouses lined up facing the sand.
That compact size is both the appeal and the catch. From the end of the paved road you can be on a camel within minutes and at your camp before sunset. It also means you won't have the dunes to yourself: in peak season, camel trains cross the same ridges at sunrise, and the bigger camps can host dozens of guests a night. In 2019, local authorities closed unlicensed camps over waste and water use, so ask which camp your tour uses and read its recent reviews.
Merzouga also makes it easier to fill a spare afternoon. Khamlia, a village 7 km (4 miles) away, is known for Gnawa, a spiritual music tradition. Fossil workshops line the road around Erfoud, and after heavy rain the seasonal Lake Yasmina can reappear, as it did in 2024. Sandboarding and 4x4 tours of the erg are easy to add.
Erg Chegaga: the remote one
Erg Chegaga is Morocco's largest dune sea, and it feels like it. It starts about 56 km (35 miles) southwest of M'Hamid El Ghizlane, the oasis town where the paved road ends. There is no asphalt beyond that point. You cross rocky plains and dry riverbeds by 4x4 (four-wheel drive), and for many travelers that drive is half the adventure.
The dunes are lower than at Erg Chebbi (some rise over 50 meters, about 165 feet), but they run on for miles, and the camps sit far apart. At night the only lights you see may be your own camp's. Most guests arrive by 4x4 and take a shorter camel ride at sunset, instead of riding in from a village.
West of the dunes lies Lake Iriqui, a dry lakebed protected since 1994 as part of Iriqui National Park. Many tours leave Chegaga across it toward Foum Zguid, so the trip becomes a loop rather than an out-and-back. The trade-off is comfort: the tracks are bumpy, there are fewer camps to choose from, and the day you reach the dunes is a long one. If you get carsick, bring motion-sickness tablets.
Getting there from Marrakech
Both trips start the same way. You cross the High Atlas over the Tizi n'Tichka pass to Ouarzazate, about 200 km (125 miles) away, usually with a stop at the old kasbah of Ait Ben Haddou. Count on half a day with photo stops. After Ouarzazate, the roads split.
- To Merzouga, you head east through the Dades Valley and the Todra Gorge, then down to Erfoud and Rissani. The full distance from Marrakech is about 560 km (350 miles), about 10 hours behind the wheel, so tours break it with a night in the Dades Valley and reach the dunes on day two. The drive back, or on to Fes, is another long day.
- To Erg Chegaga, you turn south down the Draa Valley, past miles of palm groves and mud-brick villages, to Zagora and M'Hamid. That's about 445 km (275 miles) from Marrakech. From M'Hamid, plan on roughly two more hours by 4x4 to reach the camps.
You don't have to decide alone. Many private Sahara desert tours from Marrakech can be arranged for either route, and with a private driver you set the pace and stop where you like.
How many days do you need?
Three days and two nights is the realistic minimum for either desert. A day trip from Marrakech can reach the Agafay desert, which is stony rather than sandy, but not the Sahara dunes.
For Erg Chegaga, three days works if you don't mind long drives. Four days is more relaxed: you can sleep in the Draa Valley on the way down, spend a full evening in the dunes, and come back across Lake Iriqui and Foum Zguid instead of retracing your steps. That last day is still a long one. That makes Chegaga a natural fit for a round trip from Marrakech.
Merzouga has one more advantage: it sits on the way north. From the dunes, Fes is about 470 km (290 miles) away through the Ziz Valley and the Middle Atlas, while Chegaga lies far to the south, away from that road. So if your trip includes the imperial cities (Fes, Meknes, Rabat and Marrakech), Merzouga fits in without backtracking. The 8 Days Morocco Tour from Marrakech to Casablanca follows that line: Ait Ben Haddou, the Dades and Todra gorges, a night at Merzouga, then Fes, Rabat and Casablanca. With one more day, a 9-day tour to Merzouga and Erg Chebbi adds the blue streets of Chefchaouen after Fes.
So, which desert should you choose?
Choose Merzouga and Erg Chebbi if:
- it's your first time in the Sahara and you want the big, classic dunes;
- you only have three days, or you're continuing to Fes and the north;
- you're traveling with young kids or older relatives and prefer paved roads and more camp options.
Choose Erg Chegaga if:
- you've already seen Merzouga, or crowds would spoil the moment for you;
- a 4x4 crossing sounds like fun rather than a chore;
- your trip starts and ends in Marrakech and you can give the desert four days;
- you want very dark skies for stargazing or night photography.
Neither one is more "real" than the other. Merzouga gives you the postcard dunes and an easy route on to the rest of Morocco. Chegaga gives you the space and silence around them.
When to go
October to April is the best window for both deserts, and November to March is the mildest. Erg Chegaga, lower and further south, runs a few degrees warmer than Merzouga all year, which helps in winter and hurts in summer.
| Average day / night, 2021-2025 | Merzouga | Erg Chegaga |
|---|---|---|
| October | 30 / 17 °C (86 / 63 °F) | 32 / 20 °C (90 / 68 °F) |
| January | 18 / 4 °C (64 / 39 °F) | 21 / 8 °C (70 / 46 °F) |
| April | 29 / 15 °C (84 / 59 °F) | 32 / 18 °C (90 / 64 °F) |
| July | 42 / 28 °C (108 / 82 °F) | 45 / 31 °C (113 / 88 °F) |
Nights out on the sand can feel colder than these averages, so pack a warm layer even in spring. Spring can also be windy, and a sandstorm can haze the views for a day. In July and August, keep your time on the dunes to early morning and evening.
FAQ: Erg Chegaga or Merzouga
Which desert is closer to Marrakech?
On paper, Erg Chegaga: about 445 km (275 miles) to M'Hamid, against about 560 km (350 miles) to Merzouga. But the last 56 km (35 miles) to Chegaga are off-road, so total travel time ends up close.
Which desert has taller dunes?
Erg Chebbi, near Merzouga, with dunes up to 150 meters (about 490 feet). Erg Chegaga covers more ground, but its dunes are lower.
Can I see both deserts in one trip?
Yes, on a longer itinerary of about 10 days or more. The two ergs are far apart, so trying to fit both into a week means very long drives.
Can I drive to Erg Chegaga myself?
You can drive yourself as far as M'Hamid on paved roads. Past that, the tracks need a 4x4 and someone who knows the way, so most travelers go with a local driver.
