That's the second time I've read the phrase in two recent threads, so I really need to ask ... What would looking up some "independent research" entail?
Well, depends which trains, too. You can get between smaller towns/cities fairly cheaply but if you're travelling the length of the country you're gonna rack up some cost no matter what you do. There are often special holidaymaking "rail card" passes you can buy, often they're discounted for families and usually bundle in…