Training for holiday

Time to explore!

Pasir Ris, 39 km. Another year is coming to an end. Another holiday is coming. It's easy for an office worker to leave for a walkabout vacation. While I don't sit on my behind all day, would I be able to be on the saddle all day for multiple days? So I train for my holiday.

Someone said that the first few days of a long trip is the training ride. After that, the body adapts to the new regime. While that seems to be true for long rides in my experience, I wish that applies to ultramarathons. Surely the first few days of a multi-day run would be detrimental for the untrained?

I wonder if I should find out. Time to look for a multi-day ultra run?