Marine Wildlife - Whales and Dolphins

Nature & Wildlife

The waters off the Algarve coast support a rich marine wildlife community that includes several species of dolphins and whales, ocean sunfish, sea turtles and a diversity of pelagic fish and seabirds. The region's position at the junction of the Mediterranean and the Atlantic, combined with the upwelling of nutrient-rich deep water along the continental shelf, creates productive feeding grounds that attract marine mammals throughout the year.

Common dolphins are the species most frequently encountered on boat trips from the Algarve coast. These gregarious animals, which grow to around 2.5 metres in length, are found in pods ranging from a few individuals to groups of several hundred. They are acrobatic and inquisitive, frequently bow-riding alongside boats and leaping clear of the water. They are present year-round, though sightings are most reliable between April and October when sea conditions are calmest.

Bottlenose dolphins, larger and more robust than common dolphins, are also regularly seen off the Algarve. Some individuals appear to be resident in the waters around the Ria Formosa and the Sagres peninsula, while others are part of wider-ranging offshore populations.

The waters south of Sagres and Cabo de Sao Vicente are particularly productive for marine wildlife. Minke whales, fin whales and occasionally sei whales pass through these waters, particularly during spring and autumn migrations. Orcas are seen in the area seasonally, typically in summer, when they follow the bluefin tuna migration through the Strait of Gibraltar.

The ocean sunfish (Mola mola) is one of the Algarve's more unusual marine residents. These enormous, disc-shaped fish, which can exceed 2 metres in length and weigh over a tonne, are frequently seen basking at the surface during the warmer months. The Algarve's waters are one of the most reliable places in Europe to see them.

Loggerhead sea turtles are occasional visitors to Algarve waters, and rare nesting events on Algarve beaches have been recorded in recent years, attracting significant conservation interest.

Several operators run marine wildlife watching trips from ports along the Algarve coast. Lagos, Albufeira, Vilamoura, Faro, Olhao and Sagres all have operators offering half-day boat trips. The trips from Lagos and Sagres tend to encounter the greatest species diversity due to the deeper waters and upwelling zones nearby. Responsible operators follow codes of conduct that limit approach distances and time spent with animals.

The University of the Algarve's marine biology department conducts research into dolphin populations, seahorse conservation and marine ecosystem health. Snorkelling and diving along the Algarve coast also reveal underwater biodiversity, from octopus and moray eels in the rocky reefs to seahorses in the seagrass beds of the Ria Formosa.