Lyndel Prott, ed., Finishing the Interrupted Voyage: Papers of the UNESCO Asia-Pacific Workshop on the Protection of the Underwater Cultural Heritage pp. 168; UNESCO Publishing and Institute of Art and Law, Leicester: 2006. ISBN: 1-90398711-3.

Almost 5 years after its adoption, the UNESCO Convention on the Protection of the Underwater Cultural Heritage has a mere six state parties. It requires 20 parties for the convention to come into force. Although there may be numerous reasons why states have failed to ratify the convention, perhaps the most common is simply because many developing states, even those rich in underwater cultural heritage, have little experience or expertise with protecting underwater cultural heritage, both practical and legal; and they are hesitant to ratify the convention without ensuring that they can implement the then-binding international obligations. This is particularly the case in the Asia-Pacific region, rich in underwater cultural heritage but as yet not represented in those states party to the convention. The need to encourage ratification of the convention in the Asia-Pacific is best described in the paper by Jeremy Green: