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Starting From EUR 30 / per person
Common Dolphin
Delphinus delphis is the most frequent dolphin sighted in the temperate Atlantic ocean, although it is one of the smallest (1,8 . 2,3m). They are extremely sociable this species can be found in pods up to thousands of individuals. They feed mainly on small fish and cephalopods. Portuguese waters offer great conditions for breeding and nursery during the summer season.
Bottlenose Dolphin
Tursiops truncatus are the best known of all cetaceans, from the aquatic parks but also known for their acrobatic jumps. The pods we find off Lisbon migrate along the coast, sometimes remarkably close to the shore due to their interest in shallow water preys. They mainly feed on cephalopods and bigger fish close to sandy grounds. Their robust bodies can grow up to 2,5 – 3,8 m
Striped Dolphin
Stenella coeruleoalba is a pelagic small delphinid most common in warm-temperate waters, such as Lisbon. They tend to be spotted together with Common dolphin pods due to their similar behaviour and diet. Although with slightly smaller dorsal fins, they grow up to 2,5m. Stripes refer to the blue and white blazes along the lateral and dorsal side of their body. Acrobatic jumps are used to communicate with pods far kilometres apart.
Minke Whale
Although the Balaenoptera acutorostrata have a worldwide distribution, they are the smallest baleen whale that can grow up to 10m. This species can be considered a coastal species that feeds on big shoals of pelagic small fish and zooplankton. They can be spotted most frequently along the Lisbon underwater canyon. When spotted, our crew gets very emotional!
Greater Flamingo
Phoenicopterus roseus can be considered the kings of the Tagus Estuary. During low tides, these magnificent big birds can be found in large flocks with vibrant pink and dark pink colours. Their diet consists mainly on algae, diatoms and invertebrates filtered from the mud flats and lagoon systems. They occur all year round, although migration from sub-Sahara Desert.
Spoonbill
Platalea leucorodia is a majestic large white wading bird with a spatula for a bill. As adults, they have a short crest and yellow breast patch. Widely found in the Tagus Estuary wetlands with shallow water and its tidal flats, they seem to dance while feeding by sweeping its bill side-to-side for crustaceans and small fish.
Osprey
Pandion haliaetus is a large raptor that lives and preys over lakes, rivers, coastal waters. A cosmopolitan highly resilient to several environments they normally are found on utility poles and high platforms near water. This species can be seen plunging feet-first into water from the air to prey. In the Tagus Estuary, Osprey there are a couple of individuals known by the birding communities and well studies. An iconic beautiful bird of prey
Cory’s Shearwater
During summer season it is common to see Calonectris diomedea (borealis) gliding over the waves nearly touching the surface of the water. Their smooth way of flying is commonly seen close to dolphins or whales. Able to dive up to 10m bellow, only with the help of cetacean species they can find fish. In late summer, flocks join in patches over the surface to prepare the migration.
Great Cormorant
Phalacrocorax carbo in Portugal are seen all year round, however it is during Autumn that several Cormorants are seen entering rivers and estuaries, such as the Tagus river. Along this Estuary’s waterways it is common to spot hundreds of individuals enjoying the winter sunny days. A fearsome hunter that dries its black wings in the sun after a good swim.
Northern Gannet
Morus bassanus is a glorious and the largest seabird seen in Portugal. With a wingspan of up to 1,2m, they are great fish spotters by flying high over the surface. When a shoal of pelagic fish is spotted, they dive like bullets over them and easily catch their prey. Juvenils only get to adulthood after their 4th year, when plumage gets white, yellow and very elegant.

Seo-EO - ConservationBy joining SeaEO Tours customers contribute to local conservation efforts through collecting data on important Cetacean sightings for national environmental authorities (ICNF) and for SeaEO research database. Besides dolphins and whales, we also collect plastics out in the ocean, river and Estuary to be processed and catalogued by environmental NGOs, and later recycling them or reusing them for ocean litter awareness projects.

 By spending several hours per week at sea or on the water surface, it is common to observe gelatinous organisms. These jellyfish populations are mainly driven by tides, currents, and waves. We collaborate with the GelAvista from the national maritime and atmospheric Institute (IPMA).

Respecting animal welfare is essential during the encounter with wildlife and as responsible partners of the Nature Tourism concept that promotes the local communities in Protected Areas. Portugal has a general code of conduct while observing wild Cetacean in natural habitats. Therefore, by adopting strictly this code of conduct (avoid staying more than 30 minutes with each pod, keeping a minimum distance of 30 meters, and approaching pods or whales smoothly from behind) we also explain these measures to all our guests. It is also imperative for us to have a biologist tour guide onboard each tour to understand their behaviour and to collect important data.

Our future projects include a more sustainable approach towards avoiding dependency on fossil fuels used on our boat engines, by promoting sustainable tourism especially in order to promote decarbonization of economic activities. We are planning to acquire electric boats with maximum comfort an even better ecological approach.

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