There could be a good argument for protecting the environment by keeping ALL people out of the water. Anyone go for that?
This is a very good idea!
Have areas as no-go zones for motored vessels. I can think of areas of shallow sea grass beds, that Dugongs enhabit in Moreton bay as one inparticular- if access was limited to shore based swims, rowed dinghies or kayaks/canoes it would mean alot less stress for those Dugongs and the beds they feed off.
Other areas such as overdived coral reefs could be closed off and on to limit the impacts of to many divers. Thailand already uses this idea at the Similians with some sites and areas closed annually on a rotational basis, but unfortunately this doesn't stop the desperate illegal fishing of those areas, in a country in which the minimum wage is below $10USD a day- Indonesia is even worse at $2/day and lets not even peer over to India or Africa
The impacts this has on the environment due to the lack of education-quality of life- and how it attributes to overpopulation in those countries has all but been avoided by the developed countries governments, as the Multi-national Corporations use the cheap labor and lack of environmental protection to increase their own profits.
Many types of "sharks" are dangerous for the poverty line "swimmers", but when you have a vested interest via a fat superannuation/401k fund why would you oppose these actions. All that you care about is what you will have in the bank upon retirement, how much tax you have to pay on it and the price of a new BMW- never mine who's pocket it this is really coming out of.......... and I think to myself, what a wonderful world!!!!!