10880144944_fa773eb731_o September 28, 2014 3600 × 2460 An Explanation of Bitcoins, Part II (The Technology) (Source: https://flic.kr/p/hzrA2W) This sign says to not enter the beach in a motorized vehicle because sea turtles are nesting. We saw a couple of Americans parked on the other side of this sign, fishing, and their tire tracks ran directly over a freshly laid sea turtle nest.