Diving bans and "management" at state (and WMD)-managed parks are flatly indefensible from a liability perspective (the state and park management is already indemnified against problems.) The sole defensible reason for them is lack of resource to mitigate impact (e.g. steps, high-risk wildlife of one form or another, etc) The latter (e.g. steps) is easily mitigated by diver desire and checkbooks.

To the extent that we, the people, permit this without LOUD protest, we get what we deserve.