If you read cruising books you probably also think about writing a cruising book. That's actually the easy bit. The hard bit is getting it published and marketing
it. Self publishing on the internet
sounds like the solution but that's not as easy as I expected.
Amazon has a subsidiary, createspace.com, which both produces printed books and puts your ebook on Amazon. Amazon does a great job of compressing and formatting your work so that it can be read on all sorts of phones and tablets etc. But, be warned, if you have any images
in your book and used something like Open Office to produce it then you can have a mess.
Another publisher , Smashwords.com publishes only ebooks but has an excellent guide for formatting to avoid most of these problems. They only accept up to 4mg files so if you do not have Word 2007 or later to compress your work they wont take it.
Another little gotcha is that if you accept an ISBN from Createspace then you will not be able to also sell your work through anyone else. And colour images
will about double the price
of your printed book. Go black and white and keep images above 200dpi.
But given patience you can get there. My effort is at amazon.com/dp/B00BPBKG70.