Most child porn it is my understanding is traded in chat rooms and over P2P networks not websites.
Some adult sites do had links that are sometime not clear that might lead a person into a forbidden area of the web by error.
The FBI has also had set up honey pots web sites that is label to indicate they contain child pron without any and going there is illegal and will get you a with visit.
As far as being fearful to go somewhere there are means that can be found with a google search so you can not be trace back by means of your isp address.
It is always safer to surf the net by such means even it you are 100 percent a legal upstanding citizen.