First time down you should go with a friend no matter what color/race you are. Simple fact is it's easier to have a good time in a new enviroment with the extra bit of comfort that comes with having a buddy to share it with. As for the danger aspect, I would not be concerned, providing you stick to the beaten path. The reality is that those that would look for a person to hassle/fight/rob, are not going to look for someone that may fuck them up a bit in the process. Being large, I assume you would fit that profile. The overwhelming majority of drama I've witnessed has been cop on local (druggie/drunk/bandito). And the only cop trouble for me, has been while driving.