But one just needs to peruse a nautical chart to see that the place is promising. A wonderful archipelago made up of six islands that extends off the coast, providing more than 30 diving sites.
Sea conditions vary, as they do along the entire southeastern coast. Visibility can exceed 30 meters and 25 degrees centigrade and, the very next day, drop to 10 meters and 12 degress centigrade. All of this because of the famous upswelling – a cold current responsible for the name of the cape. One of Cabo Frio’s biggest advantages is it proximity to diving sites.
Ilha Comprida – Face Norte
A rocky mesa that covers an area of approximately 40 m2,a t a depth of 4 to 6 meters. to the left, near the passage way to Laje da Alagada, there are large burrows and a high incidence of open-water fish, including barracudas. Night divings is recommended.
Ilha Comprida – Laje de Dentro
A long strip of fine sand at 10 meters, and the not-so-rare presence of large rays and small nurse sharks at rest. Near the southern tip, a large rock formation serves as shelter for many moray eels. Excellent spot for underwater photography.
The inlet is sheltered from the Northeastern and eastern winds. A rock formation with a strip of sand in the center provides shelter for rays, turtles, lobsters, many nudibranchs and various species of fish. Tumpetfish can be found at night.
Ilha Dois Irmãos
Excellent place for open water fish, but the timing is restricted to calm ocean days. Rarely visited, it offers rich and peculiar animal life. On the western side, the current makes drift dives possible.
Ilha dos Papagaios
The site most visited by dive operators. Exciting marine biodiversity: octopuses, spotted eagle rays, soft corals, nudibranchs and tropical fish. The sea is always calm, ideal for begginers. Don’t miss the site that divides the second and third inlets: a rock formation rising up to 21 meters has beautiful entrances and small caves in its shallower part – a small cathedral. In the third inlet, passageways in a wall that descends to 28 meters.
Carolina lies near the mouth of the Araruama channel, from where the boats depart. The shipwreck is in pieces, with only the boilers left. But its structure can be easily discerned. A good place for macrophotography and night diving.
Source: Brazil Diving Guide