If you have arrived expecting the North American municipal pool — a chlorinated rectangle behind the town rec centre, open all summer, lane ropes on weekday mornings — you will spend a while looking for it.
Costa Rica has something else instead, and once you understand what a balneario is, the whole question changes shape.
The balneario, which is the real answer
A balneario is a public bathing complex built around a spring, a river or a hot source — several pools, gardens, picnic tables, food, and space for a family to spend an entire day. The water is usually not the point of a swim workout. The place is the point.
The archetype is Ojo de Agua in Belén, Heredia, and its numbers explain the difference better than any description.
- It opened to the public in December 1937.
- The spring rises from the Barva aquifer and delivers about 350 litres of water every second.
- That water is potable, and it runs through the pools continuously rather than sitting in them.
Read that last point again, because it is the whole difference. You are not swimming in treated water that has been recirculated. You are swimming in a spring that happens to pass through four pools on its way somewhere else. It is cold, it is clear, and it does not smell of chlorine.
How Ojo de Agua came to exist, which is a good story
It was not planned as a swimming pool. In the 1920s and 30s, workers building an aqueduct dammed the creek and made themselves somewhere to cool off. That informal pool got popular enough that it was worth building properly.
The engineer Francisco Bolaños Varela directed the work. A wall two and a half metres high went into the creek to enlarge the pool. Twelve men did it with dynamite, picks and shovels — no machinery at all.
It has been the country’s swimming place ever since. On a midweek morning there might be fifty people in it. On a weekend, three to five hundred. In the holidays and school vacations, a thousand.
One oddity worth knowing, because it explains a lot about how things are owned in Costa Rica: the site belongs to INCOP, the Instituto Costarricense de Puertos del Pacífico — the Pacific ports authority. A ports institute owns an inland swimming complex in Heredia, and leases its operation to a concession-holder. Nobody finds this strange here.
The four kinds of water you can actually swim in
1. Balnearios. Spring-fed complexes like the one above. Cool, fresh, family-oriented, cheap, busiest at weekends and school holidays. Every region has at least one, and locals will tell you which.
2. Hot springs. In the volcanic north, particularly around Arenal, geothermal water is the whole industry. These range from resort complexes charging resort prices to modest local balnearios charging very little, and in some places to free river spots that locals know about. The temperature range within one complex is usually wider than people expect.
3. Municipal and sports-complex pools. These do exist, attached to polideportivos and community sports facilities, and some municipalities run swimming lessons in them. But they are patchy, they are not in every canton, and they are not the default the way a town pool is up north.
4. Club, hotel and condominium pools. In practice this is where most foreign residents end up swimming, and where the reliable lap lanes are. Some private clubs and hotels sell day passes or memberships to non-guests, which is worth asking about locally.
If what you want is to swim lengths
Be honest with yourself about this early, because it is the single most common disappointment.
A balneario is not a lap pool. The water is beautiful and the setting is better than any leisure centre, but it is full of children on a Sunday and it is not laid out for training. If swimming is your exercise rather than your afternoon, your realistic options are a sports-complex pool if your area has one, a club or hotel membership, or the sea.
It is worth deciding this before you choose where to live, not after. In much of the country it is a genuine constraint.
Practical things worth knowing
- Weekdays are a different place. Fifty people versus a thousand is not a small difference. If you can go on a Tuesday, go on a Tuesday.
- Spring water is cold. Genuinely cold, all year, whatever the air temperature is doing. This surprises people who came for the tropics.
- Dry season is peak season. Combine that with school holidays and you get the busiest days of the year.
- Take the day, not the hour. These places are built for families to arrive in the morning with food and leave in the afternoon. Turning up for forty minutes rather misses the point.
- Ask locally about river spots. Most towns have a swimming hole that no website lists. This information is held entirely by neighbours, which is a reason to have some.
Making it permanent
CRIE — Costa Rica Immigration Experts handles residency applications, renewals, permanent residency and citizenship for people settling in Costa Rica.
See the types of residency in Costa Rica, or get in touch.
Detail on Ojo de Agua from Costa Rican press reporting on the balneario’s history. Facilities, operators and admission arrangements change — confirm locally before travelling.
Article by Glenn Tellier (Founder of CRIE and Grupo Gap)
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