Online Hiking Trail Directory business. Business Overview Trail hiking is so popular simply because it keeps you fit, it's fun, and it is one of the few sports and recreational pastimes that does not cost any money to participate in. If this is not a strong argument for starting an online businesses venture that caters to the millions of recreational hikers in this country, then I do not know what is. Like it says in a well-known movie, 'build it and they will come,' and in...