• Dolphins on almost every trip: the operator reported a 98.6% sighting rate in 2017, though wild animals are never guaranteed
• Two departure points: the Fontaínhas recreational dock in Setúbal or Tróia Marina, with check-in 15 minutes before the start
• Pack a light jacket and sunscreen, plus a swimsuit and towel, as the operator recommends

Two-hour guided boat trips from Setúbal head out into Setúbal Bay, where the Sado estuary meets the sea, to find a resident community of about 30 wild bottlenose dolphins that live there year-round. Each dolphin is known by name from the shape of its dorsal fin.

On the way, the boat passes the Arrábida coast, the Tróia peninsula, the Outão fortress and small white-sand islands.