http://www.makeuseof.com/tag/10-search-engines-explore-deep- invisible-web/

With that said, here is all you need to access the deep web:

Tor Browser: https://www.torproject.org/download/download.html.en (download the Tor Browser Bundle)

The Hidden Wiki: http://kpvz7ki2v5agwt35.onion/wiki/index.php/Main_Page (once you have Tor up and running, enter this link in to the browser and prepare yourself)