Dong Pass

Dong Pass (and the Dong Ridge) occupies a sublime, globally unique position in Indian geography, standing at an altitude of 3,800 metres (12,467 feet) above sea level in the Anjaw district of eastern Arunachal Pradesh. Located at coordinates 28.1667° N and 97.0333° E near the international trijunction of India, China, and Myanmar, the pass sits at the easternmost geographic extremity of India. Because of its extreme longitudinal location, Dong is celebrated worldwide as the exact place where the very first rays of morning sunlight touch Indian soil each day.

In the year 2000, during the turn of the new millennium, Dong gained global fame when international timekeepers confirmed that India's first millennium sunrise occurred atop this very ridge at approximately 4:26 AM. The topography is defined by the colossal canyon of the emerald-blue Lohit River (a major tributary of the Brahmaputra), flanked by towering, pine-covered massifs of the Mishmi Hills that rise abruptly from 1,000 metres at the riverbed to over 4,000 metres on the snow-capped border crest.

The overland journey to Dong is an epic expedition through eastern Arunachal Pradesh. Departing Tinsukia in Assam, the highway crosses the majestic Dhola-Sadiya Bridge (Bhupen Hazarika Setu) and heads along the Lohit River through Tezu, Hayuliang, and Hawai to reach the historic frontier garrison of Walong (1,095 m). Maintained by Project Udayak of the Border Roads Organisation, the road is paved with modern asphalt hugging sheer granite cliffs.

From Walong, travelers cross a hanging suspension footbridge over the roaring Lohit River to reach the tiny hamlet of Dong. The ascent to Dong Pass is an exhilarating 3-hour pre-dawn night hike (starting at 2:00 AM) that climbs 1,200 vertical metres through pine forests and rhododendron groves to reach the summit viewing knoll before 4:30 AM.

The highway through the Lohit gorge is maintained under Project Udayak of the Border Roads Organisation, serving as a vital strategic defense artery connecting the plains of Assam with the forward border garrisons of Kibithu and Kaho on the Line of Actual Control.

BRO teams have carved wide, stable two-lane asphalt roads through formidable rock strata, making the journey to Walong and Dong safe and accessible for all modern travelers.

The night hike from Dong village to the pass crest is steep and physically demanding. Trekking poles and sturdy hiking boots are strongly recommended.

Dense mountain fog can occasionally obscure the sunrise; check local weather forecasts in Walong before starting the midnight climb.

Taxis, SUVs, and passenger cars can drive smoothly all the way to Walong along paved national highways. The final ascent to Dong Pass is conducted strictly on foot.

Motorcyclists rate the ride through the roaring Lohit gorge as one of the most scenic and rewarding adventure rides in northeast India.

All domestic Indian travelers must possess an Inner Line Permit (ILP) for Arunachal Pradesh, readily available online or at the checkgates in Namsai and Shantipur.

Foreign nationals require Protected Area Permits and must check with the Anjaw district administration before traveling beyond Hayuliang toward the border.

The prime visiting season is from October through April, when the skies are crystal-clear and the sunrise is most spectacular. Autumn and winter feature crisp morning air and golden sunlight.

The monsoon months (May to September) bring heavy rainfall, swollen rivers, and occasional rockfall in the Lohit gorge, making the sunrise trek challenging.

Witnessing the glorious first sunrise in India—watching the sky turn from deep indigo to brilliant crimson, amber, and dazzling gold as the sun crests the eastern peaks—is a life-affirming natural spectacle.

The historic Battle of Walong War Memorial in Walong honors the heroic stand of the Indian Army in October-November 1962, where soldiers fought fiercely against overwhelming odds.

Dong Pass is the ultimate destination of the 'First Dawn Circuit', combined with visits to Kaho (India's easternmost border village), the hot springs of Tilam, and the scenic beauty of Hawai.