Sorry for the long delay in replying, I've been away for a holiday!
The hotel we stayed in was called the Casuarina hotel or the Casuarina beach hotel.....but it was ages ago, in the early 1980's so it may not be there anymore. I did my diving from a dive school/shop attatched to a hotel which was called the Coral Bay or Coral Strand. I know it's still there because I saw it advertised in a diving magazine last year. Have a look on the PADI website. Good luck and have a great time!