First step for access to TOR network is download and install TOR Browser and this software you can find in official site of TOR https://www.torproject.org

Download and install the last version of TOR.

Open TOR Browser and start to browse Hidden Website.

You can use Onion Search Engine for find website.

Onion Search Engine:

in Standard network you can use this address  https://onionsearchengine.com

in Onion Network you can use this address http://5u56fjmxu63xcmbk.onion