The best time to undertake the Rumtse to Tsomoriri trek via Spangnak Ri is from June to September. During these months, the weather is relatively stable, and the high-altitude passes are free of snow. The summer and early autumn seasons offer pleasant temperatures and clear skies, providing optimal conditions for trekking.

The Rumtse to Tsomoriri trek via Spangnak Ri is considered challenging. The trek involves crossing several high mountain passes, including the Spangnak Ri pass, which exceeds 5,000 meters. Trekkers need to be in good physical condition, have prior high-altitude trekking experience, and be prepared for long walking days, steep ascents and descents, and potentially harsh weather conditions.

Essential items to pack for the Rumtse to Tsomoriri trek via Spangnak Ri include:

• Sturdy trekking boots
• Warm clothing (layers, thermal wear, gloves, and hats)
• Waterproof jacket and pants
• Sleeping bag suitable for extreme cold
• Trekking poles
• Sunglasses and sunscreen
• First aid kit
• Water purification tablets
• High-energy snacks and sufficient water supplies
• A detailed map or GPS device
• Lightweight tent and camping gear

Proper gear is crucial for comfort and safety given the remote and high-altitude nature of the trek.

Yes, permits are required for the Rumtse to Tsomoriri trek via Spangnak Ri. Trekkers need to obtain a Ladakh Inner Line Permit, which is mandatory for all treks in the Ladakh region. Additionally, a wildlife permit from the Wildlife Department in Leh is necessary for entering the Tsomoriri area, which is a protected wildlife reserve. These permits can be arranged through trekking agencies or directly from the respective offices in Leh.

Accommodation on the Rumtse to Tsomoriri trek via Spangnak Ri primarily consists of camping. Trekkers should be prepared to carry their own tents and camping gear and set up campsites at designated spots along the route. In some villages, there might be basic guesthouses or homestays, but these are few and far between. It's important to plan ahead and be self-sufficient, especially in terms of food and shelter, given the remote nature of the trek.