First of all you need a tor client, since most of the dark places work on a .union extention. Then you also need a 'dark' mailadress
so you can't be traced.
I tell you guys that if you are planning to enter dark marketplaces with the use of deep web for sure you're is at risk.
And you are not going to like what you are going to see there. There are a lot of scams and anything disgusting there.
So, why are you going to try it and so much curious about it.
Using tor browser would be the best way, so that you can go to deep Web safely and not being tracked because tor uses encryption to your real Ip address so it's hard to trace. You can go there if you want, if you're really curios just don't forget to use tor.