Thank you for your advice
Have not been to whale island resort but it way out of town, at least 2hrs. Rainbow divers do diving there. As far as I know there is only one resort there so not much to do. Plenty of other places , much depends on your budget and needs.
Please can you let me know the other places,,,very keen snorkeller,,,thanks
I’ll name a few islands in Nha Tra: hòn Mun, hòn Tằm, Bình Hưng, Bình Ba(may be no foreigner for this island), Ninh Vân bay....,
These islands have clear water but the probability to see a school of fish swimming as much as Phi Phi island in Thailand is unlikely. But you will see alot of Chinese and Russian doing tour on those islands.
Tripadvisor already has some of these islands, you may have a look for reference.