Ringo:Diver City, most DC's on Phuket offer Liveaboard cruises to the Similans/Richelieu Rock and speedboat or Overnight cruises to Hin Daeng/Hin Muang during the high season. So check with whoever you are doing your internship to see what they can offer you.
I will do that for sure, but also wanted to have few recommandation from divers in industry here
Do they take you for live-onboard or overnight when doing DM course or you have to pay extra for that?