I'm going to be down in South Florida in a few weeks for a business meeting. The meeting starts Monday night, so my boss and I are going to try to dive in Key Largo during the day Monday. He is AOW certified, but hasn't dived for about 10 years and needs a refresher. He has asked me to arrange a private charter for us and a dive master that can dive with him to give him a refresher (and a guide for myself since I won't have a buddy.) Does anyone have a recommendation for a good operator in Key Largo that handles private charters?