will respond by recording nest size, species and protecting and keeping watch over the eggs. Raising awareness To make things and behaviors really evolve, the Gili Eco Trust raises awareness amongst local inhabitants and tourists. Every week, Delphine Robbe, Gili Eco Trust manager, teaches the three local school's classes about ecology and English. During 45 minutes, children from six to twelve years old think about solutions to preserve natural richness of Indonesia. They are taught at school on how to cultivate tomatoes, cucumbers, eggplants, aloe vera and vetiver grass. But the Gili Eco Trust does not only target children. To make every person on Gili islands improve his/her behavior, posters and notice boards have been put up. Gili Eco Trust offers to come to businesses to train their staff in eco-behavior. In the same way, boats owners can be explained why coral is important and how to behave to not damage it. Electrified reefs and biorock The electrified reef and underlying biorock processes were invented by Professor Wolf Hilbertz and Doctor Thomas J. Goreau at the end of the 1970s and early 1980s. Principle Electrified reefs are made with crisscrossed metal stems which are crossed by a low-voltage current of 1,2 Volts. These structures are installed on the ocean floor and pieces of corals are attached to them. These corals come from reefs in the neighborhood and were broken for various reasons such as unaware divers and strong waves. The electric current, which is totally harmless for any organism, leads to electrolysis, causing a calcareous precipitation on the whole structure. This will not only avoid the unwanted appearance of rust which would weaken the structure, but, as coral's skeleton is made of calcareous, the structure will, thanks to this reaction, become the best place for coral to develop. Thus biorock technology relies on a very simple principle: reproduction by electrolysis of the natural reaction occurring between coral, sea water, sun and dissolve minerals. Results Biorock technology's electrolysis is catalysis of the natural reaction and not only a simple reproduction, as this electrolysis enables a coral's development 2 to 6 times faster than in usual conditions. Normally coral grows from only some centimeters per year. And so getting its growth quicker is an efficient way to restore reefs. Moreover, coral on Biorock structures grows stronger and is more resistant to hazards it faces. Hard corals are not the only ones to