Kudos to the Caymans for putting a full–time law
enforcement officer in this popular tourist spot. Officer Ivan
Montieth with the Department of Environment is anchored
daily in a patrol boat at Stingray City to ensure the well-being
of the nearly 170 stingrays inhabiting the waters. His job is
to make sure that boat operators and tourists don’t lift rays
out of the water, boat operators are licensed, and their boats
don’t anchor in the shallows.
The Department tightened its marine conservation
  regulations after a study published in Biological Conservation  showed that tourism was having a detrimental impact on the
  stingrays. Christina Semeniuk from Simon Fraser University
  in British Columbia found that too much feeding of squid
  and the proliferation of so many boats and tourists in the
  water every day could be harmful to the stingrays’ health
  because of potential injuries and parasite transmission. Other
  research found that boat collisions and cuts from propellers
  and anchor chains are the biggest type of injury to the rays
  - - research showed that of all Cayman stingrays examined, 30
  percent from non–tourist sites had been injured, while 85 percent
  at the Sandbar had suffered boat-related injuries. Tim
  Austin, deputy director of the Department of Environment,
  said his team is working on demarcating the area more clearly
  with dedicated buoys.
Among new regulations, boats can’t anchor in water
  shallower than three feet, no one can lift stingrays out of the
  water or wear any kind of footwear in the water. Unlicensed
  tourist boats are prohibited from entering the area. It is forbidden
  to feed the stingrays anything other than ballyhoo
  and squid, and each boat is only allowed to carry one pound
  of food for them. The rules also stipulate that a maximum
  of 1,500 visitors and 20 boats are allowed at Stingray City at
  any one time, and boats are only allowed to stay there for one
  hour maximum.