1. Fuji-Hakone-Izu National Park is one of the most popular and scenic national parks in Japan, located near Tokyo. The park covers an area of 1,227 square kilometers and includes a diverse range of landscapes, including Mount Fuji, hot springs, lakes, waterfalls, forests, and coastlines.

Some interesting facts about the park include:

- Mount Fuji, the highest peak in Japan at 3,776 meters, is located within the park

- Hakone, a popular hot spring resort town, is also located within the park

- The park is home to over 1,400 species of plants and animals, including several endangered species

- The coastline of Izu Peninsula is famous for coral reefs and the Shirahama Beach, known for its white sand and clear waters

- The park is a popular destination for outdoor activities like hiking, camping, fishing, and cycling

2. The park is open 24/7, but specific facilities within the park may have varying hours of operation. The administrative office of the park is located in Yamanashi prefecture and can be reached at +81-555-72-0259 for inquiries.

3. There is no admission fee for entering the park. However, fees may apply for certain facilities and activities within the park, such as hot springs and museums. Transportation to the park can be accessed by train or bus from Tokyo. The most popular route is to take the Odakyu Romancecar train to Hakone or the JR Tokaido Shinkansen to Mishima, both of which have connections to the park by bus or train.