Cacilhas is the natural arrival point for visitors crossing from Lisbon, and the waterfront immediately rewards the twelve-minute ferry ride. The Tagus here is wide enough to feel like an inland sea, and the view back to Lisbon — the old city climbing its hills, the dome of the Basilica da Estrela visible in the middle distance, the Ponte 25 de Abril to the west — is one of the best of the capital you will find anywhere.
The waterfront itself has the Fragata Dom Fernando II e Glória moored to one side and a row of seafood restaurants on the other. A short walk brings you to the base of the Elevador Panorâmico da Boca do Vento, while buses to Cristo Rei depart from a stop just outside the terminal. The whole area is quiet compared to Lisbon across the water — smaller streets, fewer tourists, a slower pace — and that contrast is a large part of its appeal.