Even as the global Covid-19 pandemic grounds airplanes and forces enthusiastic travelers to postpone their trips, two entrepreneurs and travel show hosts from India are looking to shake things up by introducing what they claim to be "the longest bus journey in the world".

Adventures Overland, the company formed by Indian duo Tushar Agarwal and Sanjay Madan, has so far focused on arranging driving trips across long distances, but their latest addition to the extended travel experience involves a modified luxury bus that will carry 20 people across a scenic route from Delhi, India, to London, UK, reports CNN.

In part inspired by the hippie trail buses that made similar journeys of self-discovery and natural and cultural appreciation on the road in the 1950s and 1960s, the new venture looks to show people the great diversity of the world across sites like the Great Wall of China, historic cities of Europe like Prague, and the rolling countryside of France, all in one journey that will last approximately 70 days.

"The best time to do this journey is between April and June because that's when the weather is favorable to start the journey from India through to Myanmar and to cross the high mountains of China and Kyrgyzstan," explains Agarwal in an article on CNN.

The inaugural bus journey is set to take place in mid-2021, Covid-19 restrictions pending.

It won't be cheap, however. At nearly $20,000, it will take more than the average backpacker hopes to spend on a trip, but Agarwal and Madan are confident that it's well worth it.

"It's a life-changing journey, something that people will always remember and they will cherish it forever," Agarwal says.

"This is a tried and tested route," he adds, stressing that it's designed to be as safe as possible and that local guides also join the party as each border is crossed to assist with travel logistics.

Some 40,000 people have registered interest so far, reports CNN. Past participants on Adventures Overland's self-drive version of the expedition have included travelers as young as five and as old as 75.