Statutory warning : If you have ever gone to Andaman and stayed at Hotel Port Mariden, Port Blair, never go to North Bay islands in submarine safari. There is a hotel staff called Rahul, who will try to convince you to go and he will plan that before Neil islands and Havelock. He will shell out 1,850 per head and will promise to give a bill which ultimately he will postpone and try not to give. Once you visit Neil Islands after North Bay, you will regret. The glass bottom boat at Neil will cost you 500 bucks only and show better than the submarine due to clear water. And after that if you stick on to getting the bill from him, the person will behave very badly with you. Don't fall prey to this vicious circle. P.S : If you are staying at Hotel Port Mariden, be prepared to get the worst of behavior in the last day. It may range from utter ignoring to street urchin level quarrel and treating you like a beggar.