WARNING DEPTHS IN CHANNELS AND ESTUARIES VARY CONTINUOUSLY. MARINE PROTECTED AREA THE NAUTICAL CHART COVERAGE AREA IS LOCATED WITHIN THE ECOLOGICAL RESERVE CAYAPAS MATAJE MANGROVES; THE ACTIVITIES WITHIN OF THE SAME SHALL BE SUBJECT TO THE PROVISIONS OF THE NATIONAL ENVIRONMENTAL AUTHORITY. NOTES 1.- THE NAVIGATOR IN THIS AREA MUST KEEP IN MIND THE REGULATIONS FOR PREVENT COLLISIONS. 2.- NAVIGATORS MUST OBSERVE THE REGULATIONS ISSUED BY THE MARITIME AUTHORITY NATIONAL, FOR NAVIGATION IN THE SPACES COVERED AQUATIC IN THIS AREA.