the presence on the island of the brazilian navy essentially guaranteed that legislations and decrees were respected - in fact these armed forces prohibits fishing, hunting, removal of woods, and any type of construction.

the management of the brazilian navy and army keeps the area from becoming a commercialized tourist area, and maintains it as an off-the-beaten-track ecological treasure.

the stations of operations also provide excellent site seeing for those interested in the military and military history.  

published by the secretaria de estado de meio ambiente e desenvolvimento sustentável estado do rio de janeiro, the paper manguezais, educar para proteger, (mangroves, educate to protect) is a comprehensive summary of this type of terrain - extremely common along the entire marambaia stretch.