About 6 miles (10km) south of Niteroi/Icarai, is the Fortaleza de Santa Cruz da Barra.
When the Portuguese came to Brazil in the 1500's this location was used as a prime defensive post along with a couple other key fortified sites. It was active in the Dutch Invasion of the 17th century and the French Invasion of the 18th century. This site was improved and reinforced over the years, but it is still a functioning part of the naval forces.
You must participate in the guided tours which last for about 45 minutes since this is an active military area. There are no historical information signs and all the background information will come to you from the guide in Portuguese.
The Fortress is open to tourists until 6pm every day except Monday. Entry cost is R$4 per person. There is a small cafe just outside the fortress.
Estrada General Eurico Gaspar Dutra - Jurujuba, Niteroi
You could take bus #33 to the end of the line, just past Jurujuba. This bus terminates in the parking lot of the forturess. There is a "Tourist Line" bus from the Niteroi ferry terminal also services this, but only three times per day (departure from ferry terminal is 10:00, 12:30; 14:30), however in my months here, I have never actually seen it operating.
On your way along the coast to Jurujuba, you will pass a few smaller fishing villages. If you have your own transportation or time to spare, take a couple minutes and walk around. They are small but can be picturesque. Particularly if you pull out a camera or if the locals hear you speaking anything other than Portuguese, you will have a curious crowd watching you.
Camboinhas is one of the ocean beaches of Niteroi, lots of big houses in the area but the beach is gorgeous.
Very clean water, green and relaxing sea....
It is easier to reach by car because no bus get to the neighborhood...I usually go there with my friends.
It is great to go in the weekends..the food in every quiosk stand is simply marvelous. Camboinhas has the fame to have spectacular sea food!!!
Blocos in Niteroi are much more local...
I did not see any tourists at all, so for those of you who like that, this is a must!