# Gruta do Lago Azul Natural Monument, Brazil: what it is and when to go > Gruta do Lago Azul Natural Monument is a cave in Brazil (Gruta do Lago Azul). Interests: Nature. The best time to visit is December to February and June to September. In December there are 13 h 17 of daylight, and in June, 10 h 43. It has articles in 4 Wikipedias, so it is not one of the busiest places in Brazil: one to enjoy at a calmer pace. Here is what it is, where it lies, when to come, how to get there and what else is nearby to turn it into a trip. - Address: https://kokai.app/en/paises/america/brasil/blue-lake-cave/ - Reviewed on: 2026-10-08 - Language: en ## In a nutshell - **What it is:** Cave in Brazil · Nature - **Local name:** Gruta do Lago Azul - **Where:** Brazil - **Best time:** December to February and June to September. - **Nearest airport:** IGU Foz do Iguaçu, 540 km as the crow flies - **Coordinates:** -21.14471, -56.59151 ## What it is and where Gruta do Lago Azul Natural Monument is a cave in Brazil (Gruta do Lago Azul). It has articles in 4 Wikipedias, so it is not one of the busiest places in Brazil: one to enjoy at a calmer pace. Its coordinates are -21.14471, -56.59151; the nearest main airport is Cataratas International Airport (IGU, Foz do Iguaçu), 540 km as the crow flies. How to get around Brazil (train, car, bus) is covered in [its country guide](https://kokai.app/en/paises/america/brasil/#moverse). - [Where it is](https://www.google.com/maps/search/?api=1&query=-21.144712%2C-56.591511) - [Directions](https://www.google.com/maps/dir/?api=1&destination=-21.144712%2C-56.591511) It is one of the [Nature](https://kokai.app/en/paises/america/brasil/naturaleza/) places in Brazil. In [Kokai](https://kokai.app/en/) it is already on your trip map next to the places you save yourself, and it goes into a day's plan with one tap. ## When to go The best time to visit Gruta do Lago Azul Natural Monument is **December to February and June to September**. | Mes | Época | Hours of daylight | | --- | --- | --- | | January | Best time | 13 h 09 | | February | Best time | 12 h 42 | | March | Possible | 12 h 09 | | April | Possible | 11 h 31 | | May | Possible | 11 h | | June | Best time | 10 h 43 | | July | Best time | 10 h 50 | | August | Best time | 11 h 16 | | September | Best time | 11 h 53 | | October | Possible | 12 h 30 | | November | Possible | 13 h 02 | | December | Best time | 13 h 17 | In December there are 13 h 17 of daylight, and in June, 10 h 43. Daylight hours are calculated from the site's latitude for the 15th of each month; when planning a full day on foot they matter as much as the weather. When to go to Brazil in general, with its festivals and peak seasons, is in [its country guide](https://kokai.app/en/paises/america/brasil/#cuando-ir). ## Before you go to Brazil To enter Brazil there are 9 things to sort out before you leave, starting with “Passport valid for six months”: they are all, with their deadlines, in [the Brazil checklist](https://kokai.app/en/paises/america/brasil/#antes-de-salir). Currency: Brazilian real (BRL); plugs: Type N and C · 127 V and 220 V depending on the region · 60 Hz (you need an adapter and should check the voltage); emergencies: 190 police · 192 ambulance · 193 fire brigade. In [Kokai](https://kokai.app/en/) you tick off the checklist inside your trip, and each item reminds you when it is time to do it. ## What is nearby - [Bio Park](https://kokai.app/en/paises/america/brasil/bio-park/): With kids · Wildlife · 10 km - [Buraco das Araras](https://kokai.app/en/paises/america/brasil/buraco-das-araras/): Geological formation in Brazil · 43 km - [José Antônio Pereira Museum](https://kokai.app/en/paises/america/brasil/museu-jose-antonio-pereira/): Museums and art · 215 km - [Mercado Municipal Antônio Valente](https://kokai.app/en/paises/america/brasil/mercado-municipal-antonio-valente/): Market · 219 km - [Morada dos Baís](https://kokai.app/en/paises/america/brasil/morada-dos-bais/): Cultural center in Campo Grande, Mato Grosso do Sul, Brazil · 219 km Distances are as the crow flies. Everything else is in [the Brazil guide](https://kokai.app/en/paises/america/brasil/). ## More in Brazil: Nature - [Iguazu Falls](https://kokai.app/en/paises/america/brasil/cataratas-del-iguazu/): waterfalls on the Igazú River on the border of Misiones, Argentina and Paraná, Brazil - [Sugarloaf Mountain](https://kokai.app/en/paises/america/brasil/sugarloaf-mountain/): peak situated in Rio de Janeiro, Brazil - [Mount Roraima](https://kokai.app/en/paises/america/brasil/monte-roraima/): High plateau in South America - [Guanabara Bay](https://kokai.app/en/paises/america/brasil/bahia-de-guanabara/): oceanic bay located in Southeast Brazil - [Jaú National Park](https://kokai.app/en/paises/america/brasil/jau-national-park/): national park of Brazil - [Corcovado](https://kokai.app/en/paises/america/brasil/corcovado/): mountain in Rio de Janeiro, Brazil, known for the Christ Statue Every Brazil place under Nature, each with its season, is on [its page](https://kokai.app/en/paises/america/brasil/naturaleza/). ## Frequently asked questions ### What is Gruta do Lago Azul Natural Monument? It is a cave in Brazil (Gruta do Lago Azul in the local language). It has articles in 4 Wikipedias, so it is not one of the busiest places in Brazil: one to enjoy at a calmer pace. ### When is the best time to visit Gruta do Lago Azul Natural Monument? December to February and June to September. In December there are 13 h 17 of daylight, and in June, 10 h 43. ### How do you get to Gruta do Lago Azul Natural Monument? The nearest main airport is Cataratas International Airport (IGU), 540 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=-21.144712%2C-56.591511) opens the route on the map, and how to get around Brazil is explained in [its country guide](https://kokai.app/en/paises/america/brasil/#moverse). ### How do I add it to my trip? With one tap. In Kokai it is already on the Brazil map, next to the places you save yourself: add it to a day's plan, give it a time and, if you like, get a reminder when you pass nearby. ### What else is around here? Nearby you have [Bio Park](https://kokai.app/en/paises/america/brasil/bio-park/), [Buraco das Araras](https://kokai.app/en/paises/america/brasil/buraco-das-araras/), [José Antônio Pereira Museum](https://kokai.app/en/paises/america/brasil/museu-jose-antonio-pereira/). The rest is in [the Brazil guide](https://kokai.app/en/paises/america/brasil/). Data from [OpenStreetMap](https://www.openstreetmap.org/node/2382055156), licensed under the ODbL, and from [Wikidata](https://www.wikidata.org/wiki/Q22687920), CC0. More about Gruta do Lago Azul Natural Monument on [Wikipedia](https://en.wikipedia.org/wiki/Gruta_do_Lago_Azul_Natural_Monument). Daylight hours are calculated from the latitude. More in [credits](https://kokai.app/en/aviso/#creditos).