Seems like an oxymoron, but that's the motto of http://www.dayhiker.com - a website about long, challenging dayhikes. There is a happy egalitarian spirit on this web site that makes you smile. They promote finding adventure wherever you are at a level that is appropriate for you.
From the home page: The Day Hiker philosophy is a minimalist approach to clothing, food, and equipment so the hiker can: go early, go light, go fast, go far, go high, and achieve a personal best in one day, returning to a hot shower, a gourmet meal, a fine wine, and a comfortable bed.
I read a lot. I always have. I read fast too and that means I always have piles of books overflowing my bookshelves. Here are some good ones I'm looking at on my bookshelf right now.
Fastnet, Force 10: The Deadliest Storm in the History of Modern Sailing, New Edition
by John Rousmaniere.