The best tourist attractions in Kathmandu District are Kathmandu Durbar Square, Swayambhunath Stupa, Pashupatinath Temple, and Shivapuri Nagarjun National Park. Durbar Square offers traditional Nepalese architecture, while Swayambhunath Stupa provides spectacular views. Pashupatinath Temple is a Hindu sacred place, and Shivapuri Nagarjun National Park provides amazing nature trekking. All these places add to the cultural and natural richness of Kathmandu District.

One of the local foods of Kathmandu District that you should try is "Momos." Nepalese dumplings are filled with meat or vegetables and then steamed, boiled, or fried. Momos are served with spicy sauce and are usually enjoyed as snacks or main dishes. They are delicious and perfect to enjoy while exploring the Kathmandu District. Additionally, "Dal Bhat" is also a popular Nepalese dish, consisting of rice (bhat) and lentil soup (dal) with various side dishes like vegetables and meat.

The best time to visit Kathmandu District is during the spring and autumn seasons, between March to May and September to November. The weather is generally stable during these periods, with comfortable temperatures, clear skies, and minimal rainfall. This is an ideal time for trekking, exploring tourist attractions, and enjoying the natural beauty of Kathmandu District without too much weather hindrance.

There are various interesting natural attractions around Kathmandu District. One is Shivapuri Nagarjun National Park, 12 kilometers from the Kathmandu city center. The park offers amazing trekking through dense forests, beautiful waterfalls, and spectacular views of the Himalayan peaks. You can also visit Nagarkot, a hill station famous for its stunning sunrise and sunset views and panoramic views of the Himalayan mountains. Lastly, Chandragiri Hills is a popular spot to enjoy beautiful mountain views and outdoor activities like paragliding. All these destinations offer captivating nature experiences around Kathmandu District.

Most tourists, including those from the Kathmandu District, require a visa before visiting Nepal. Visas can be obtained at the Nepalese embassy or consulate in your home country before departure or at the airport upon arrival in Nepal. For more information on visa requirements and application procedures, it is advisable to visit the official website of the Embassy of Nepal or the Nepalese Consulate in your country or contact them directly.