http://www.gutenberg.org/files/308/308-h/308-h.htm
The first half of the opening chapter is the best intro to any work of comic fiction I've read.
At face value it's a simple road trip story (by boat), but the episodes of hypochondria and camaraderie still feel contemporary and fun — it is written and to be read for the pure joy of it, and you need look for no deeper meaning.
If you like Jerome K. Jerome, you should also check out Saturnin: https://www.goodreads.com/book/show/1724928.Saturnin It has a great poetic and funny style of classical Czech works. There's a movie too. Just in case someone is interested, a movie with a similar funny and poetic style https://en.wikipedia.org/wiki/Cutting_It_Short (Postřižiny) and I'd also recommend checking out https://en.wikipedia.org/wiki/Valerie_and_Her_Week_of_Wonder... - a surrealistic horror film...I love the soundtrack https://www.youtube.com/watch?v=LPyPEraG74c ...and to make it relevant to the original request, there's a book of the same name by Vitezslav Nezval (I haven't read it though)