New National Park regulation for tortoise corals visits at the Darwin Station Research Station (Puerto Ayora, Santa Cruz Island)
Effective September 1st 2011, visitors to the Charles Darwin Research Station in Santa Cruz, will no longer be allowed to enter or walk inside the interior walls of the tortoise corals.
Guides have reported that passengers are not following rules prohibiting them from touching or feeding the tortoises. Passengers will only be able to view the tortoises from outside the corals walls.
Photo source: Parque Nacional Galapagos - http://www.galapagospark.org
For a more in-depth report, please go to http://www.sangay.com/ecuadorguide/galapagos-islands/2457/
Galapagos Islands and Ecuador Travel Blog 
Sorry to hear about the new regulation. It was such a neat experience to sit beside the big guys. But, once again, a few spoil it for the many.
Carole, sad to see how the irresponsibility and lack of respect of few have repercussions for the masses. Sad, but necessary steps I feel.