Spiti Valley has a reputation as one of the harder trips to plan well — long driving days, patchy network, high-altitude passes, and a route that changes depending on which side you enter from. None of that should put you off; it just means the planning matters more than usual.
Shimla Route vs Manali Route
There are two ways in. The Shimla route (via Kinnaur — Narkanda, Sarahan, Kalpa, Nako) is longer but gradually gains altitude, which helps with acclimatization, and the road is generally more reliable across the season. The Manali route (via Rohtang/Atal Tunnel and Kunzum Pass) is shorter and more dramatic, but it climbs faster and is weather-dependent — Kunzum Pass can close with little notice.
The route we recommend most often: enter via Shimla-Kinnaur (better acclimatization) and exit via Manali, so you get the gradual ascent and the shorter, more scenic descent. Doing it in reverse means hitting Spiti's altitude before your body has had time to adjust.
Permits
Indian nationals need an Inner Line Permit for certain restricted areas near the Indo-China border (parts of Kinnaur and Spiti close to the border, such as beyond Nako towards the Line of Actual Control). These are usually arranged locally in Reckong Peo or Kaza and don't require advance paperwork for most standard tourist routes, but foreign nationals face additional restrictions and should confirm current rules well before travel, since these do change.
Altitude and Acclimatization
Kaza sits at roughly 3,800m, and the valley's key points — Key Monastery, Kibber, Chandratal — sit higher still. Altitude sickness is a real risk, not a formality to mention and move past. Build in at least one full rest day in the valley before pushing higher (Kibber, Komic, Langza), drink more water than feels necessary, avoid alcohol for the first two days, and don't skip meals even if appetite drops, which is a common early symptom.
If anyone in your group has a history of altitude sensitivity or a cardiac or respiratory condition, this is worth discussing with a doctor before booking, not after arriving.
Best Time to Visit Spiti Valley
Mid-June to early October is when both entry routes are typically open and driveable. July-August coincides with monsoon on the Shimla side (landslide risk on that stretch) but Spiti itself, being a rain-shadow desert, stays largely dry — worth knowing since it changes which route is safer that particular week. September is a strong, less crowded option with stable weather. Winter travel (November–April) is possible only via the Shimla-Kinnaur route since Manali-side passes close, and requires serious cold-weather preparation — this is a trip for experienced travellers, not first-timers.
How Many Days Do You Need?
A minimum of 7 days from Shimla or Manali and back is realistic once you account for driving time and one acclimatization day. 8-9 days lets you add Chandratal Lake and the Pin Valley without rushing. Anything shorter usually means cutting either the rest day or one of the valley's highlight villages, and we'd advise against cutting the rest day.
Practical Notes
Fuel stations are sparse once you're deep in the valley — top up in Kaza and don't assume the next pump is close. Network coverage is limited to BSNL in most stretches and absent entirely in others; tell people at home to expect radio silence. Cash matters more than cards once you're past Reckong Peo.
If you'd like a day-by-day Spiti itinerary built around your dates and which route suits the season you're travelling in, get in touch and we'll work through it with you.
