Cabo Frio means cold cape, and the town is named after the thing visitors are least ready for. The same upwelling that makes Arraial do Cabo's water famously clear runs along this coast: when the north-easterly wind pushes surface water offshore, cold water rises from the deep to replace it. It cools the sea and it cools the air, which is why the first image looks nothing like a Brazilian beach. That is CACTUS on a coastal headland, in a country whose coastline is mostly rainforest.
Disclosure: This post contains affiliate links. If you buy through them, Roman Trail earns a small commission at no extra cost to you.
What Is Here
THE SAND WAS A COMMODITY BEFORE IT WAS A BEACH. Praia do Forte's sand is near-pure quartz, white and very fine, and it was MINED HERE COMMERCIALLY to supply the Brazilian glass industry. That is the useful way to understand this coast: the sand is a mineral deposit that happens to make a good beach, which is also why it is blindingly bright and why the glare is worse here than the temperature suggests.
THE LAGOON BEHIND THE TOWN IS SALTIER THAN THE SEA. The third image is the bridge over the Canal do Itajuru, the narrow channel that connects the Atlantic to the LAGOA DE ARARUAMA, one of the largest permanent hypersaline lagoons in the world. High evaporation and a restricted connection to the ocean concentrate the salt, which is why there are commercial SALT PANS along its shore and why the lagoon water is warm, buoyant and calm where the sea 500 metres away is cold and rough. For swimming with children, or for anybody who tried the ocean once and declined to repeat it, the lagoon side is the answer.
THE DUNES ARE THE SECOND IMAGE AND THEY ARE A PROPER LANDSCAPE. The Dunas do Pero and the dune field behind Praia do Pero run for kilometres, with sandboarding rented at the top and a long empty beach below. Pero is the surf beach and is a different proposition from the sheltered town beaches: it faces the open Atlantic and it means it.
THE FORT IS 1616 AND IS THE REASON THE TOWN EXISTS. The Forte Sao Mateus sits on the rocks at the mouth of the channel, built by the Portuguese to stop French and Dutch ships loading brazilwood from this coast. It is small, cheap and worth forty minutes, and the view from it explains the geography better than any map.
AND HERE IS THE HONEST POSITIONING, BECAUSE THE REGION HAS THREE TOWNS AND THEY ARE NOT INTERCHANGEABLE. Cabo Frio is the BIG one, around 230,000 people, a working Brazilian resort city with a long urban beachfront, heavy summer traffic and a famous street of bikini shops. ARRAIAL DO CABO, twenty minutes south, is the small pretty fishing and diving town. BUZIOS, forty minutes north east, is the expensive fashionable one. If you want charm, Arraial is prettier; if you want to be seen, Buzios; if you want supermarkets, a bus station, a hospital, cheaper accommodation and a base for all three, this is it.
When to Go
March to May and September to November are the best of it, with warm air, manageable crowds and the sea at its least punishing.
December to February is high summer and it is a crush. Cabo Frio is where Rio goes in January, the one road in from the capital becomes a car park at weekends, and prices roughly double. The lagoon and the dunes absorb it better than the town beaches do.
June to August is the southern winter: twenties by day, cool evenings, very quiet, and a sea most people will not enter. Good for the fort, the dunes and the lagoon, poor for a swimming holiday.
Note the one piece of weather nobody warns about: when the upwelling is running hard in summer, the sea here can be fifteen degrees colder than the air.
Getting There
Cabo Frio has a small airport with limited and partly seasonal domestic flights, so most visitors come by road from Rio de Janeiro: about two and a half hours, with frequent coaches from the Novo Rio terminal into the Cabo Frio bus station.
This is the transport hub for the whole Regiao dos Lagos, which is a real reason to base here: local buses and vans run constantly to Arraial do Cabo and Buzios, where those towns have far less connecting them to anywhere else.
In town, the beachfront and the centre are walkable and the dunes and Pero are a short bus or taxi ride. A car helps for the lagoon shore and the salt pans, and in January it is a burden.
The Cabo Frio Packing List
Fierce glare off white quartz sand, cold sea, warm lagoon, dune sand everywhere and strong sun at 23 degrees south.
Our merino base layers are 100% Australian merino at 17.5 micron, and a lightweight long sleeve merino wool base layer for women suits the specific rhythm of this coast: into cold water, out into wind on a bright beach, into an air-conditioned shop, back out. Wool holds warmth while slightly damp where a cotton top turns cold against the skin, and over a week of salt and sunscreen it does not develop a smell.
A long sun hoodie is the first thing to pack, and the reason here is the ground as much as the sky: quartz sand reflects ultraviolet upward, so people burn the underside of the chin and the inside of the arms, which no reapplication routine covers.
A wide brim sun hat and an insulated water bottle, because the dune field has no shade and no kiosks and the walk back is through soft sand.
A quick dry travel towel, and walking shoes with grip for the fort's rocks and the dune climbs, which are hard work barefoot and hot enough at midday to burn.
Insect repellent, applied by DAY as well as in the evening, for the reason in the health note below, and particularly around the lagoon margins.
Not linked and worth packing: SUNGLASSES WORTH THE NAME, since the glare off this sand is the harshest in the batch; A RASH TOP if you intend to swim properly in the ocean; CASH IN REAIS for the kiosks, the vans and the sandboard rental; AND A SEALED BAG FOR A PHONE, because dune sand gets into everything and is abrasive.
Recommended Tours and Experiences
Essential Resources for Women in Cabo Frio
Emergency numbers: 190 for police, 192 for ambulance and 193 for fire, all free from any phone, with 193 also reaching the fire service for water rescue. The tourist police in Rio de Janeiro state are the DEAT, and an insurance claim will need a police report.
THE SEA AND THE LAGOON ARE TWO DIFFERENT BODIES OF WATER AND THE DISTINCTION IS A SAFETY ONE. The ocean beaches, particularly PERO, face the open Atlantic with surf and rip currents, and the water is cold enough to produce COLD SHOCK in the first minute: an involuntary gasp, breathing you cannot control, and a rapid loss of grip strength. Nobody expects that at this latitude, which is what makes it dangerous. Enter slowly, stay in your depth until your breathing settles, and if caught in a current swim parallel to the beach rather than against it. The LAGOA DE ARARUAMA is the opposite: warm, calm and so salty you float easily, which makes it the sensible swim for anybody who wants one. THE DUNES INJURE PEOPLE MORE OFTEN THAN THE WATER DOES, through heat, through sandboarding falls at speed onto hard-packed sand, and through surfaces hot enough at midday to blister bare feet. AND THE SUMMER TRAFFIC IS A GENUINE RISK rather than an inconvenience: the coastal roads here carry heavy January volumes with pedestrians crossing between beach and town, and motorbike and scooter traffic weaves through it.
Theft is the realistic risk in Brazil and the FCDO is specific enough to be useful. Robberies are common in many cities and particularly on buses, thieves target mobile phones and the FCDO names the window BETWEEN 4PM AND 9PM, and attackers may be armed. THE ADVICE IS NOT TO RESIST: hand over valuables rather than arguing with someone who may be armed and under the influence. Thefts are especially common on public beaches, including ARRASTOES, where a large group runs through a stretch of beach grabbing everything, so take nothing to the beach you would mind losing and DO NOT GO ON TO CITY BEACHES AFTER DARK. And the FCDO is unambiguous about FAVELAS: avoid all of them, including favela tours marketed to tourists and any accommodation, restaurant or bar advertised as being inside one, and check that a GPS route is not taking you through one, because tourists have been shot after entering by accident. The geography matters here and the post will not blur it: the FCDO's dedicated RIO DE JANEIRO section covers the city, which is 170km west, and does not describe this town. What applies here is the national advice above, and its beach clauses are the operative part in a resort city of this size: take nothing to the sand you would mind losing, and stay off the town beaches after dark.
UK FCDO: there are no advised-against areas in mainland Brazilian cities, and the one place the FCDO advises against all but essential travel is RIVER TRAVEL ON SPECIFIC AMAZON STRETCHES: along the Amazon west of Codajas and east of Belem do Solimoes in Amazonas State, along any part of the Itaquai or Japura rivers, and along the Rio Negro north or west of Barcelos, because of criminal activity in the border country Brazil shares with Colombia, Peru and Venezuela. NOTE THAT BELEM DO SOLIMOES IS A TOWN IN AMAZONAS AND NOT THE CITY OF BELEM IN PARA, which is 1,500km east and is not named. Four areas have their own sections covering ordinary crime rather than advice against travel: RIO DE JANEIRO, SAO PAULO, BRASILIA, where the FCDO names the central bus station area for theft, and NORTH-EAST BRAZIL, where it names theft from hotel and motel rooms and muggings, and advises using taxis after sunset rather than walking and avoiding quiet or deserted areas.
US State Department travel advisory: the Brazil advisory. Read the current level there directly rather than relying on a figure printed in any guide.
UK FCDO travel advice: gov.uk/foreign-travel-advice/brazil, and read the safety and security page rather than only the landing page, because that is where the substance sits.
Main hospital: Cabo Frio has the main hospital provision for the Regiao dos Lagos, including a municipal hospital with an emergency department, and it is where cases from Arraial do Cabo and Buzios are brought. For anything major, Rio de Janeiro is two and a half hours away. Dial 192 for an ambulance. Brazil has no reciprocal health agreement with the UK or the United States, so insurance with medical cover and repatriation is essential. Private hospitals in the big cities are genuinely good and expensive and will want payment or an insurance guarantee before treating you; the public SUS system will treat an emergency and is slower and more variable. A farmacia handles minor problems. TAP WATER IS TREATED AND GENERALLY SAFE IN THE MAJOR CITIES including Brasilia, Porto Alegre and Fortaleza, though most Brazilians drink filtered and bottled is universal. DENGUE IS THE REAL HEALTH RISK and Brazil has large annual epidemics, with chikungunya and Zika also present; the mosquito that carries all three bites BY DAY, so repellent is a daytime measure. YELLOW FEVER VACCINATION is recommended for much of the country and some onward countries require a certificate if you have been here, so check before you travel rather than at the border.
Official health authority: the Brazilian Ministry of Health. covers the national health service and the current dengue situation, which varies sharply by state and season
US Embassy: the United States Embassy in Brasilia.
Official tourism authority: Visit Brasil, the national tourism board. covers Brazil nationally, and the municipal tourism office publishes the beach and lagoon information and the licensed buggy and boat operators
Takeaways
The name is a weather report. The sea is cold and the air often is not.
The lagoon is warm, calm and saltier than the sea. Swim there instead.
This is the big town of the three. Arraial is prettier, Buzios is pricier.
Best base for the region, because the buses and the hospital are here.
Solo women safety assessment: Cabo Frio is a straightforward place to travel alone with ordinary Brazilian care. It is a large working resort city rather than a boutique one, which cuts both ways: the beachfront and the centre are busy, lit and full of families well into the evening, and there are also ordinary city streets behind them where a visitor has no particular reason to be after dark. The FCDO's national advice is the operative guidance and it is specific: theft is the realistic risk, robberies are common and particularly on buses, the named window is between four and nine in the evening, attackers may be armed, and THE ADVICE IS NOT TO RESIST. Thefts are especially common on public beaches, including the arrastao, where a group sweeps a stretch of sand grabbing everything, so take nothing to the beach you would mind losing. Do not use town beaches after dark. The FCDO's Rio de Janeiro section is about the city 170km away and does not reach here, which is worth stating as plainly as the warnings that do apply. THE PHYSICAL RISKS ARE COLD WATER AND HEAT. The ocean here produces cold shock in the first minute, which almost nobody anticipates in a tropical climate, and the ocean-facing beaches carry rip currents while the hypersaline lagoon behind the town is calm, warm and the better swim. The dunes cause more injuries than the sea, through heat and sandboarding. Dengue is carried by a day-biting mosquito, so repellent is a daytime habit rather than an evening one. 190 REACHES POLICE, 192 AMBULANCE AND 193 FIRE AND WATER RESCUE, and the region's main hospital is in this town.
Reading On
Cabo Frio is the hub of a stretch of coast with its own character. The Rio de Janeiro packing list covers the city two and a half hours west that most visitors arrive through and that fills this town every January, and the Paraty packing list covers the colonial port on the other side of it down the Costa Verde. For warmer and clearer water, the Praia da Pipa packing list covers a north eastern beach town where the sea is twenty eight degrees rather than eighteen, and the Fernando de Noronha packing list the archipelago with the best diving in the country. South, the Florianopolis packing list covers the island city of Santa Catarina, and inland the Sao Paulo packing list covers the largest city in the Americas. For the country, the Brazil travel guide for women carries the regions, the transport and the seasons in full. For why wool suits cold water and strong sun in the same hour, read the guide to merino wool base layers for women. Every destination we cover is indexed at the travel packing guide for women, and the base layers are at the Roman Trail collection. Published alongside this one: the Arraial do Cabo packing list covers the small fishing and diving town twenty minutes south, which is the prettier half of this coast and where the upwelling that names this town shows what it does to the water.
If the outer journey is calling you, the inner one usually is too. Explore SoulMap at romantrail.com/blogs/soulmap.