9.02 km horseshoe tunnel
10.5 m wide, 5.52 m high, semi-transverse ventilation — engineered by BRO.

Opened October 2020 at 3,100 m, Atal Tunnel is the world's longest highway tunnel above 3,000 m. It cut the Manali–Keylong drive from 5 hours to 90 minutes and made Sissu, Keylong and even Spiti accessible in winter for the first time.
Opened October 2020 at 3,100 m, Atal Tunnel is the world's longest highway tunnel above 3,000 m. It cut the Manali–Keylong drive from 5 hours to 90 minutes and made Sissu, Keylong and even Spiti accessible in winter for the first time.
10.5 m wide, 5.52 m high, semi-transverse ventilation — engineered by BRO.
Selfie point with tunnel entrance sign at 3,060 m — free parking.
Emerge into Lahaul in 10 minutes with Chandra river & waterfall on right.
The reason winter Spiti, Sissu, Keylong homestays even exist as a category.
Enforced by cameras — one ticket has ruined more Instagram reels than snow.
No pump inside — last tank at Manali; next reliable at Tandi (T-point).
Atal Tunnel sits in a corner of Himachal shaped by centuries of Pahari kings, traders and pilgrims. The valley's identity — its temples, wood-and-stone homes and festivals — is still lived, not staged for visitors.
Local food, seasonal fairs and hand-woven textiles remain part of daily life around Atal Tunnel. Homestays are the fastest way in.
The landscape around Atal Tunnel moves between deodar forest, terraced fields and high ridges, with rivers and passes shaping every drive.
Atal Tunnel rewards travellers who slow down — the best of it is not on the highway, but a short walk or drive off it.
Skip the obvious viewpoint on weekends. Ask your homestay host where locals go for chai at 5 pm — that answer is the trip.
Eight kinds of traveller, eight ideal trips. Tell us which one is you.
Safe, walkable stretches of Atal Tunnel with easy activities.
Slow mornings, quiet corners, boutique stays around Atal Tunnel.
Atal Tunnel is safe, café-rich and welcoming for solo trips.
Treks, high passes and offbeat routes launch from Atal Tunnel.
Golden-hour light, layered mountains and living culture.
Comfortable stays, drive-up viewpoints and easy paths.
Temples, monasteries and Pahari traditions around Atal Tunnel.
Reliable 4G, cafés and long-stay homestays in Atal Tunnel.
This hub is being built section-by-section. The foundation is live — Phase 2 adds the interactive map, attractions and things to do.