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Trip guides  /  Day trips

The Troia Peninsula: Beaches and Roman Ruins

By the Travel Portugal Now team · Published 2 October 2026

The Tróia peninsula is a long finger of sand and pine forest across the Sado estuary from Setúbal, with miles of beaches on both the calm estuary side and the Atlantic side. It has a marina resort, Roman ruins and dolphins in the bay, and it’s the gateway to Comporta.

Quick answer: reach Tróia by ferry from Setúbal (cars and foot passengers), or drive round via Comporta. Swim at the calm estuary beaches or the long ocean beaches, visit the Roman ruins of a fish-salting complex, and watch for dolphins on the crossing. See places to stay in Comporta and Tróia.

Beach

Things to do

  • Beaches: calm, shallow water on the estuary side, and wilder surf on the ocean side.
  • Roman ruins: the remains of one of the largest Roman fish-salting centres, with tanks, baths and a mausoleum.
  • Dolphins: the Sado has a resident pod. See dolphin-watching trips.
  • The marina resort: restaurants, a casino and golf.
  • Comporta: rice fields, stork nests and boutique stays. See Comporta.

Tips

More: where to stay in Setúbal and the best beaches near Lisbon.

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