Did my first longer bike trip last week! 115k, and about 7 hours of biking.
We took some scenic routes so speed was definitely not a priority, but very fun nonetheless. Also learned that between Malmö and Helsingborg there is a bike trail(with a mix of actual bikepaths and roads with cars), that has signage the whole way! Sydkustleden is the name of it.
Exhausting is definitely the word for it. One day I'd love to do some intercontinental biking in Europe, hitting as many countries as I can. Meaning very likely doing this distance many days in a row! This is a nice little proof of concept.
What a legend. I love taking the ferry from Helsingborg. Made this exact trip for my bachelor party, hitting a pub at every stop from Helsingør and ending with a pub crawl through Copenhagen.