Miss Clinique

Please good people of BE help me. I will be in Singapore for 6 day end of March, beginning of April for a conference. When it's finished we would like to go to a beach resort to relax for 3-4 days. We want a really good hotel, nice beach with clear water. Would like to go by ferry if possible. I have looked at Bintan but am put off by the reports that the water is a bit murky, I looked Sugi Island, which is 2 ferry rides, which I don't mind but was wondering if it's worth the hassle for just a few days.

If anyone can give me some help and guidance I would really appreciate it.