Shey Phoksundo National Park, Nepal's largest and only trans-Himalayan National Park, is renowned for its stunning landscapes, including the turquoise Phoksundo Lake and the unique Tibetan Buddhist culture of the surrounding villages. Due to its remote location and rugged terrain, accessibility is limited, with options including trekking or chartered flights to Juphal airport followed by several days of hiking. Independent trekking is possible for experienced hikers, but a guided trek is highly recommended for safety and logistical support, especially considering the park's restricted area status requiring permits and the need to hire a local guide. The best time to visit is during the pre-monsoon (April-May) and post-monsoon (September-October) seasons, as heavy snowfall can block high passes during winter. A trek typically lasts 10-14 days and can cost anywhere from $1,000 to $2,500 per person, depending on the level of service and group size. Be prepared for high altitude sickness and pack accordingly.