Yes, Gambia is safe (as far as anywhere else is in Africa anyway). I went with a female friend many years ago. We were hounded by the men. I remember my friend said she felt like we were a couple of trapped rabbits! If you have a man and kids with you though, you shouldn`t have a problem. I had a very intersting time there. We went to Juffure (the village that Alex Haley traced his ancestors to). We also went to the caves where the slave traders held the slaves before they were transported across the Atlantic to America. There is a lot of history there. There are two police authorities there, the normal police and the tourist police. You can pay a tourist policeman to take you around and show you the sights. I wouldn recommend that because you will see so much more of the country than you will ever see as a tourist.