Author Archive SeaEO


Dolphins in Lisbon

Dolphins were spotted in the Tagus River at least 4 times this March.

Dolphins in the Tagus River with the 25th of april bridge background
Dolphins in the Tagus River

We spotted common-dolphins twice during our odysseys for dolphin watching in the Tagus river in the begining of March. Other boats also found dolphins some days later. The question relies on what is the real purpose of dolphins entering the Tagus river.

Are dolphins searching for food or is it an ideal place for giving birth? Can the Tagus Estuary waters eliminate parasites in their smooth skins or is it just curiosity?

The common-dolphins prefer deep waters in the Ocean. Their mains food source are fish schools, like sardines and mackerel. These strategies to find fish are strickly dependant on the sonar and communications skills. Dolphins have interesting society relationships, which is the key for their evolution in time.

Some of the cetacean species seen in Portuguese coastlines (mainland), are more curious than others. Common-dolphins normaly get very close to vessels.

Dolphins and whales are protected in the European Union member state waters since 1981. Whale watching and dolphin watching activity in Portugal are made responsibly. Wildlife observation in vessel platforms must obey to a specific code of conduct during the encounter with animals.

Dolphins in Lisbon are rarely sighted. Whenever they are found, it is absolutely increadible and our nautical tourism partners inform us. Our company is specialized on wildlife bout tours in Lisbon.

Connecting people with Nature!


Travel & Hospitality Awards

SeaEO awarded Best Wildlife Tour in Lisbon

Travel & Hospitality Awards is a global recognition programme for the travel industry recognising the very best hotels, tour operators, experience providers, and innovation companies.

travel and hospitality award winner 2020

The awards are given based on customer satisfaction, good standing with known suppliers and customer feedback with strong focus on exceptional service. Nominees are then categorised and compared on a regional basis by a panel of judges.

The main goal is to celebrate success through the recognition of innovation, outstanding service, and excellence within the travel and hospitality industry.

SeaEO-Tours was nominated and awarded winner of the Travel and Hospitality Awards in the category Wildlife Tours in Lisbon.

With Dolphin Watching Tour as a Best Seller, Sidónio Paes, Co-Founder and CEO, explains:

This award reflects the customer centric approach that we proudly work on since the first day as well the teamwork that we’ve been developing along with our partners and suppliers.

Sidónio Paes, CEO

SeaEO-Tours operates in Lisbon since February 2018.


Why is the Tagus Estuary so important?

Tagus Estuary Nature Reserve

Along 34 thousand ha., the Tagus Estuary is an extremely rich wetland due to the connection between fresh water from the river and the saltwater from Atlantic Ocean.

Here thousands of bird species occur as migrators, resident species, breeders and others just passing through. The aquatic fauna is extremely rich in fish, bivalves, polychaetes, invertebrates, phyto and zooplankton. Salt marshes along the shores are a clear example of the capacity of biological production, of carbon sequestration, as well as of trace metals. Besides diverse ecosystems of the Tagus Estuary, there are also man-made landscapes: Salt flats, Aquaculture basins and all the river fronts. The Estuary was in 1980, registered in the RAMSAR sites as being a wetland of international importance for birds.

In order to protect biodiversity, we have since 1976, the Tagus Estuary Natural Reserve (RNET), which aims to protect the existing habitats and species. Given that, we promote a better knowledge to our customers, visit the surrounding cities, show the history of people and customs and the richness of biodiversity.

There is no doubt that the Tagus Estuary is one of the most important wetlands in the Iberian Peninsula.

Sidónio Paes, CEO

We contribute to the dissemination of the ecological importance of RNET, awareness and conservation of nature under the code of conduct of Nature Tourism. Our wildlife tour services in Tagus will enchant you with the richness of this wetland so close to Lisbon. Dolphins can be seen inside the Tagus Estuary.

Further on, from the mouth of the Tagus River, the immense Ocean begins. It was from Lisbon that thousands of navigators departed on simple Caravels, Galleons, ships. These adventurers set out to find new civilizations, continents, resources and wildlife.

It is in the coastal zone of continental Portugal that, in addition to the numerous effluents that flow into the Atlantic Ocean, there is the phenomenon called Upwelling, which adds essential nutrients to primary productivity and consequently providing this coastline a highly productive zone in this immense Ocean. Marine biodiversity is abundant and could be even greater if today’s civilizations pressures over the oceans weren’t so strong.

We must help to reduce these pressures through the development of tourism activities that provide greater knowledge of the marine and estuarine wildlife together with environmental education.

It is essential to pass on environmental knowledge to future generations regarding the fragility of the oceans and their resilience so that they can help reduce human pressure in the future.

Connecting people with Nature! That’s what we do at SeaEO-Tours. Check our Boat Tours and be dazzle.

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