From Olhão : Private Half-Day Tour of the Guadiana River with a Local Guide

4.5 (1 Review)
Marina Center, Av. 5 de Outubro Loja n° 13, 8700-408 Olhão
From: €0,00
(1 review)

4 Hours

Tour Type

Daily Tour

Group Size

12 people


English, Français, Portuguese, Spanish

About this tour

This walk takes us to the Southwest of Portugal, a territory where the main element is the Guadiana River. It shapes the landscape and the culture of the region. This River headwater is located in the south of the Madrid region and works as the border between Spain and Portugal in its last stretch.

The Flumen Anas (Roman period) or the Wadi Ana (Arab period), meaning the Ducks River, is a hot spot of biodiversity, that we are going to explore during this walk. The footpaths on the river banks and the river waters were heavily used for the smuggling of goods, during the Portuguese dictatorship period, by local families.

Vale do Guadiana Nature Park with about 69,666 ha, is on the middle course of what is the “Great South River” of Portugal – the Guadiana river – resting on an undulating plain where the embedded river and its tributaries valleys are hidden, the last ones quite frequently reduced to ponds during summertime. This protected area borders the Guadiana from Pulo do Lobo area to the Vascão stream mouth. The highest point in this park (370 m) is on the quartzite hill tops of Alcaria and São Barão.

In Portugal Guadiana is the most important watershed for inland fish conservation, represented by 11 native and resident fish species, most endemic to Iberian Peninsula. Noteworthy are the “saramugo” (Anaecypris hispanica), the Guadiana nase (Pseudochondrostoma willkommii), the Iberian small-head barbel (Luciobarbus microcephalus) and the freshwater blenny (Salaria fluviatilis), which only occur in this hydrographic basin in Portugal. This is also an important breeding or growth site for 4 migratory fish species, namely the sea lamprey (Petromyzon marinus), the Allis shad (Alosa alosa), the Twaite shad (A. fallax) and the European eel (Anguilla anguilla).

The vegetation is dominated by sweet acorn oak (Quercus rotundifolia) forests, with a modest presence of cork oaks (Quercus suber), extensive areas of cistus and rainfed crops, a proof that we are in the heart of Alentejo region. Avifauna includes birds of prey and an important set of passerines. In Mértola, there is the last urban colony and one of the most important at Portugal level, of a very rare and threatened species – the lesser kestrel (Falco naumanni).

On top of a rocky crest, marking the end of Guadiana’s navigability area, Mértola dominates the surroundings and keeps numerous testimonies from earlier times – Arabs, Romans, Medieval…

In a group, a maximum of 8 people can go in the van, the price will always be for a private group !

This activity is suitable for visitors staying in Olhão / Faro area. Visitors staying outside of this area, an alternative meeting point will be arranged.

Timing recommendation : All year round



  • Discover local biodiversity of the Guadiana Natural Park
  • Enjoy incredible views and landscapes
  • Observe wildlife in detail using optical equipment
  • Uncover the details of the history in addition to the cultural heritage of this region
  • Appreciate the silence being disturbed by the sounds of birds and insects
  • Smell the different fragrances and odours of the vegetation
  • Breathe in the fresh air


  • Nature guide
  • Binoculars
  • Birds Field guide
  • Fauna and Flora Field guides
  • Transports
  • Insurances
  • Taxes
  • Food and Water


3 - 4 Hours



Frequently asked questions

We do not refund customer cancellations less than 24 hours prior to departure. For cancellations of customers with more than 24 hours before departure, we refund the amount in full.


This activity can be conditioned by the weather . We can, in case of bad weather , we cancel the trip by fully refunding the amount paid or rebooking the trip to another time.

Tour's Location

Marina Center, Av. 5 de Outubro Loja n° 13, 8700-408 Olhão


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Super journée, super guide, super paysages et super temps que dire de plus ? Je recommande

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4.5 (1 Review)

Why book with us?

  • Top Quality

    Top Quality

    The service is excellent, of the best quality in the Algarve.

  • Private Group

    Private Group

    Walk in private group until 8 Persons

  • Local Agents

    Local Agents

    Our local agents will advise you in the best way possible to find best options for you

  • Customer Service

    Customer Service

    Speak to our team quickly via Whatsapp, call or email and we will answer any questions you have about this activity as quickly as possible


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