💡 SIM card: Get an e-SIM with the Nomad app
    💡 Transportation: Get your international driver's licence directly online and print it at a 7eleven
     Transport in Tokyo : Subway (buy a 3-day pass at a subway station or online) 
     Transport from Tokyo to Nagano: Cheaper way bus (about 5h), faster JR train (1h) 
     Transport in Nagano: Rent a car at Budget Nagano (Please refer to Japanese Automobile Federation regulations) 
     Transport from Tokyo to Kawaguchiko: Bus (about 2h) 
     Transport in Kawaguchiko: Rent a bike and a car at Budget Kawaguchiko next to Kawaguchiko Station (Please refer to Japanese Automobile Federation regimentations)
If you have more time, I recommend you to explore: 
            📍 Kyoto: Explore historic temples, tea gardens, and traditional streets. 
            📍 Osaka: Enjoy vibrant cuisine, visit Osaka Castle, and explore Dotonbori. 
            📍 Hiroshima and Miyajima: Visit the Peace Memorial Park and the iconic floating Torii gate. 
            📍 Nara: Encounter sacred deer, see the Great Buddha at Todai-ji, and visit historic temples. 
            📍 Hokkaido: Discover natural landscapes, ski resorts, hot springs, and local cuisine. 
            📍 Fukuoka: Explore Kyushu culture, visit Dazaifu Tenmangu Shrine, and enjoy city attractions. 
            📍 Okinawa: Relax on white sandy beaches, explore WWII sites, and indulge in unique Ryukyu culture.