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Would one really put Koh Tao and the Phillipines in the same category?
I live in Saigon nowadays, and don't hear many people talk about the diving. A few threads on here and on lonely planet etc. From what I gather, it's very average. Nha Trang, Phu Quoc, and Con Dao.
To be clear, I haven't been diving here yet, I'm just mentioning the places you might search for or look up, and that I've heard it's ok not great or worth planning a trip around.
Vietnam or Thailand or Japan how is the diving?