Congratulations on sharing this wonderful event! However, shame on those that turned on the lights. This could scare the turtle into returning to the sea and laying her eggs in the water, thus losing out on a whole next generation that would otherwise return to the same spot to nest.
These very pictures illustrate the reason why local environmental groups (and longtime guests that want to preserve their home away from home) are protesting the building of new hotels near the Fisherman's Huts (Fairmont among others is lobbying for this spot) and the expansion of Tierra del Sol at the Arashi beach. The last remaining open beaches need to be protected.

Along the beaches you will see red and white barriers set up: these are to protect the turtle nests.