Get a grandstand view of the world beneath Sal's water on this semi-submerged submarine - its lower deck is wall to wall windows that allow you to peer right out to watch the undersea show, snapping photos of all goings-on, shoals of bream and rockfish, exotic flora and swaying sea grass.
If you are lucky, moray eels, puffer fish, trumpet fish, stingrays and turtles. You will even get close up to a spooky shipwreck. And if you fancy a breather, head to the upper deck to soak up the sunshine and panoramic views over Sal's coast.
Meeting/pick-up point: Hotel in Sal Island.
Duration: 1h and 45 minutes.
Start/opening time: At 9.30am.
Languages: English