Isla Coronado is an old volcano which was surrounded by coral reef and in the past when water levels were much higher these reefs were hudge. Now these old reef can be seen above the beaches, they look like hills until you see where water has cut away channels – solid coral up to 20 feet thick. This is also why the beaches and anchoring ground is white coral sand on the bottom, beautiful beyond words. From the boat at anchor you see Manta Rays , fish of all colours and type swimming by – we were anchored in an aquarium. The second day we decided to climb to the top of the volcano which was a real scramble but well worth the views. Upon our return we were surprised to find our boat FULL of bees. They were massed any where water might have been and as the picture shows our damp dish rag was covered. Josh had to fish the rag out of the boat from above with his fishing gear and then we quickly pull up our anchor and headed north. Later we found that thirsty bees can be a problem so when you leave your boat have no water inside, some even put a tray outside on the deck as a diversion.