Давай разбираться.

http://www.widecast.org/What/Country/Lucia/Docs/How%20to%20behave%20around%20sea%20turtles.pdf

Официальная памятка

DO keep beach lighting to a minimum. Artificial light disorients (confuses) sea turtles.

Keep your lights off at this stage. Your eyes will adjust. Flashlights and lamps can
easily disorient hatchlings, hindering their race to the ocean. On beaches where
artificial lighting is visible, the hatchlings' important journey to the sea may be
disrupted. Hatchling sea turtles emerging from nests at night are strongly attracted to
light sources along the beach. Consequently, hatchlings move toward streetlights,
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porch lights, security lights or even interior lighting visible through windows, and
away from the ocean. Having been misled, hatchlings fail to find their way to the sea
and may succumb to attacks by predators (including pets), exhaustion, drying in the
morning sun, or strikes by automobiles on nearby parking lots and roads. A single
light left on near a sea turtle nesting beach can misdirect and kill hundreds or
thousands of hatchlings. Cases where hatchlings have been led to their death into the
flames of unattended fires are indications to the strong attraction hatchlings have for
light.

Написанно, что их привлекает яркий свет, а вспышки камеры могут временно ослепить и дезориентировать черепахеннов. Про смертельные круги действительно ничего не сказано.