I've been diving Portobelo for the last 15 years. (And, yes, it too has changed a lot.) I can't say enough about Golden Frog Scuba. Rey's rates are better than Panama Divers or Scubapanama, and his service is top shelf. There are two different areas of diving in Portobelo; the protected shallow sites like Drake Reef, Buena Ventura and the sunk airplane carcass ... and the sites along the outer, barrier reef -- Salmedina and Tres Hermanas. Most the dive ops won't go to Salmedina or Tres Hermanas except when the sea is flat between September and mid-November. Not so with Rey. We dove both sites with him in April ... and will do so again around Thanksgiving.