London

Oh, what an exciting adventure you have ahead in Japan! While I see you mentioned London in your constraints, I believe you meant to say Tokyo, Mount Fuji, Osaka, Nara, Kyoto, and Hiroshima. Let's plan out your 8-day itinerary in Japan at a fast pace with private bus travel.

Day 1: Tokyo

• Start your day with a visit to the iconic Tokyo Tower for panoramic views of the city.
• Explore the bustling streets of Shibuya and cross the famous Shibuya Crossing.
• Visit the historic Senso-ji Temple in Asakusa and wander through Nakamise Shopping Street.
• Enjoy a traditional Japanese dinner in the lively district of Shinjuku.

Day 2: Mount Fuji

• Travel to the Fuji Five Lakes region and enjoy breathtaking views of Mount Fuji.
• Visit the Chureito Pagoda for a classic view of Mount Fuji with cherry blossoms or autumn foliage.
• Take a cruise on Lake Kawaguchi for a different perspective of the majestic mountain.
• Relax in an onsen (hot spring) with views of Mount Fuji in the background.

Day 3: Osaka

• Explore the vibrant Dotonbori district known for its neon lights and street food.
• Visit Osaka Castle for a glimpse into Japan's history and beautiful architecture.
• Enjoy a fun-filled day at Universal Studios Japan for thrilling rides and entertainment.
• Try Osaka's famous takoyaki (octopus balls) for a delicious snack.

Day 4: Nara

• Visit Nara Park to see the friendly deer roaming freely and feed them some deer crackers.
• Explore Todai-ji Temple, home to the Great Buddha statue, one of the largest bronze statues in the world.
• Stroll through the charming streets of Naramachi to experience traditional Japanese architecture and shops.
• Enjoy a relaxing evening in a traditional ryokan (Japanese inn) in Nara.

Day 5: Kyoto

• Start your day with a visit to Fushimi Inari Taisha, famous for its thousands of torii gates.
• Explore the historic district of Gion and maybe spot a geisha or maiko.
• Visit Kinkaku-ji (Golden Pavilion) and enjoy the serene beauty of the temple and its surrounding gardens.
• End the day with a traditional tea ceremony in a machiya (traditional wooden townhouse).

Day 6: Hiroshima

• Visit the Hiroshima Peace Memorial Park and Museum to learn about the city's history and the impact of the atomic bomb.
• Take a ferry to Miyajima Island and see the iconic floating torii gate of Itsukushima Shrine.
• Enjoy a delicious Hiroshima-style okonomiyaki (savory pancake) for lunch.
• Explore the Shukkeien Garden for a peaceful retreat in the heart of the city.

Day 7: Kyoto

• Visit Arashiyama Bamboo Grove for a tranquil walk among towering bamboo stalks.
• Explore the historic district of Higashiyama and visit Kiyomizu-dera Temple for stunning views of Kyoto.
• Experience a traditional kaiseki (multi-course) dinner at a ryokan.
• Attend a maiko (apprentice geisha) performance for a cultural evening.

Day 8: Departure

• Depending on your flight time, you can squeeze in some last-minute shopping or sightseeing.
• Bid farewell to Japan and reflect on the wonderful memories you've created during your fast-paced adventure.

I hope this itinerary gives you a good balance of iconic sights, cultural experiences, and delicious food during your 8-day journey through Japan. Safe travels and enjoy every moment of your trip!