# Sitio RHRAP Desembocadura y Estuario del Río Maipo, Chile: what it is and when to go

> Sitio RHRAP Desembocadura y Estuario del Río Maipo is a protected area in Chile (San Antonio, Chile). Interests: Nature and Wildlife. The best time to visit is October to April. In December there are 14 h 13 of daylight, and in June, 9 h 47. It has an article in one Wikipedia, so it is not one of the busiest places in Chile: 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/chile/sitio-rhrap-desembocadura-y-estuario-del-rio-maipo/
- Reviewed on: 2026-10-08
- Language: en

## In a nutshell

- **What it is:** Protected area · Nature, Wildlife
- **Where:** Chile
- **Best time:** October to April.
- **Nearest airport:** SCL Santiago, 81 km as the crow flies
- **Website:** [fundacioncosmos.cl](https://fundacioncosmos.cl/proyectos/humedal-rio-maipo/)
- **Run by:** Fundación Cosmos, Fundación Mar Adentro y Museo Municipal de Ciencias Naturales y Arqueología de San Antonio
- **Coordinates:** -33.62058, -71.6202

## What it is and where

Sitio RHRAP Desembocadura y Estuario del Río Maipo is a protected area in Chile (San Antonio, Chile). It has an article in one Wikipedia, so it is not one of the busiest places in Chile: one to enjoy at a calmer pace.

El sitio de aproximadamente 140 hectáreas incluye el sector de playa, barra de arena, zona estuarial, pajonales, áreas pantanosas, zona arbustiva, área dunaria y desembocadura. En este ecosistema se registran un total de 132 especies de aves.

It is in [San Antonio, Chile](https://kokai.app/en/paises/america/chile/san-antonio/), where this site lists 10 more places to see, 2.5 km from the centre.

Its coordinates are -33.62058, -71.6202; the nearest main airport is Comodoro Arturo Merino Benítez International Airport (SCL, Santiago), 81 km as the crow flies. How to get around Chile (train, car, bus) is covered in [its country guide](https://kokai.app/en/paises/america/chile/#moverse).

- [Where it is](https://www.google.com/maps/search/?api=1&query=-33.620577%2C-71.620199)
- [Directions](https://www.google.com/maps/dir/?api=1&destination=-33.620577%2C-71.620199)

- **Run by:** Fundación Cosmos, Fundación Mar Adentro y Museo Municipal de Ciencias Naturales y Arqueología de San Antonio

It is one of the [Nature](https://kokai.app/en/paises/america/chile/naturaleza/) and [Wildlife](https://kokai.app/en/paises/america/chile/fauna/) places in Chile. 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 Sitio RHRAP Desembocadura y Estuario del Río Maipo is **October to April**.

| Mes | Época | Hours of daylight |
| --- | --- | --- |
| January | Best time | 14 h |
| February | Best time | 13 h 12 |
| March | Best time | 12 h 15 |
| April | Best time | 11 h 09 |
| May | Possible | 10 h 15 |
| June | Possible | 9 h 47 |
| July | Possible | 9 h 58 |
| August | Possible | 10 h 45 |
| September | Possible | 11 h 48 |
| October | Best time | 12 h 52 |
| November | Best time | 13 h 47 |
| December | Best time | 14 h 13 |

In December there are 14 h 13 of daylight, and in June, 9 h 47. 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.

| What you come for | Best time | Possible |
| --- | --- | --- |
| Nature | October to April | May to September |
| Wildlife | October to April | May to September |

It is not the same trip whatever you come for: Sitio RHRAP Desembocadura y Estuario del Río Maipo has a different season depending on what you want to do here, and [Kokai](https://kokai.app/en/) puts it in the right month for you.

When to go to Chile in general, with its festivals and peak seasons, is in [its country guide](https://kokai.app/en/paises/america/chile/#cuando-ir).

## Before you go to Chile

To enter Chile there are 8 things to sort out before you leave, starting with “Book domestic flights and Torres del Paine places”: they are all, with their deadlines, in [the Chile checklist](https://kokai.app/en/paises/america/chile/#antes-de-salir). Currency: Chilean peso (CLP); plugs: Type C and L · 220 V · 50 Hz (the Spanish two-pin plug usually works); emergencies: 133 police · 131 ambulance · 132 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

- [Ojos de mar de Llolleo](https://kokai.app/en/paises/america/chile/humedal-urbano-sistema-de-lagunas-de-llolleo-ojos-de-mar/): Wetland system in Llolleo, Chile · 1.5 km
- [Museo de Historia Natural e Histórico de San Antonio](https://kokai.app/en/paises/america/chile/museo-de-historia-natural-e-historico-de-san-antonio/): Museum · 1.8 km
- [Panul Lighthouse](https://kokai.app/en/paises/america/chile/faro-punta-panul/): Lighthouse in Chile · 5.1 km
- [Casa Museo de Vicente Huidobro](https://kokai.app/en/paises/america/chile/casa-museo-vicente-huidobro/): National monument of Chile · 7.6 km
- [Laguna El Peral](https://kokai.app/en/paises/america/chile/santuario-de-la-naturaleza-laguna-el-peral/): National monument of Chile · 13 km

Distances are as the crow flies. Everything else is in [the Chile guide](https://kokai.app/en/paises/america/chile/).

## More in Chile: Nature

- [Ojos del Salado](https://kokai.app/en/paises/america/chile/ojos-del-salado/): highest volcano in the world
- [Llullaillaco](https://kokai.app/en/paises/america/chile/volcan-llullaillaco/): stratovolcano in Chile and Argentina
- [Beagle Channel](https://kokai.app/en/paises/america/chile/canal-beagle/): strait of Chile and Argentina
- [Atacama Large Millimeter Array](https://kokai.app/en/paises/america/chile/atacama-large-millimeter-array-science-preserve/): 66 radio telescopes in the Atacama Desert of northern Chile
- [Copahue](https://kokai.app/en/paises/america/chile/copahue/): stratovolcano nestled on the border between Argentina and Chile
- [Fitz Roy](https://kokai.app/en/paises/america/chile/monte-fitz-roy/): mountain of Chile - argentina

Every Chile place under Nature, each with its season, is on [its page](https://kokai.app/en/paises/america/chile/naturaleza/).

## Frequently asked questions

### What is Sitio RHRAP Desembocadura y Estuario del Río Maipo?

It is a protected area in Chile. It has an article in one Wikipedia, so it is not one of the busiest places in Chile: one to enjoy at a calmer pace.

### When is the best time to visit Sitio RHRAP Desembocadura y Estuario del Río Maipo?

October to April. In December there are 14 h 13 of daylight, and in June, 9 h 47.

### How do you get to Sitio RHRAP Desembocadura y Estuario del Río Maipo?

The nearest main airport is Comodoro Arturo Merino Benítez International Airport (SCL), 81 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=-33.620577%2C-71.620199) opens the route on the map, and how to get around Chile is explained in [its country guide](https://kokai.app/en/paises/america/chile/#moverse).

### How do I add it to my trip?

With one tap. In Kokai it is already on the Chile 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 [Ojos de mar de Llolleo](https://kokai.app/en/paises/america/chile/humedal-urbano-sistema-de-lagunas-de-llolleo-ojos-de-mar/), [Museo de Historia Natural e Histórico de San Antonio](https://kokai.app/en/paises/america/chile/museo-de-historia-natural-e-historico-de-san-antonio/), [Panul Lighthouse](https://kokai.app/en/paises/america/chile/faro-punta-panul/). The rest is in [the Chile guide](https://kokai.app/en/paises/america/chile/).

Data from [OpenStreetMap](https://www.openstreetmap.org/way/1032990661), licensed under the ODbL, and from [Wikidata](https://www.wikidata.org/wiki/Q99842606), CC0. More about Sitio RHRAP Desembocadura y Estuario del Río Maipo on [Wikipedia](https://es.wikipedia.org/wiki/Humedal_R%C3%ADo_Maipo). Daylight hours are calculated from the latitude. More in [credits](https://kokai.app/en/aviso/#creditos).