Swimming and Snorkelling on Sal – Which Water Is Safe and Which Is Not

Sal is a low, dry island in the open Atlantic, and the sea around it does not behave the same way on all sides. Within ten kilometres you can find water a toddler can stand in and water that professional kitesurfers treat with respect. The difference matters more here than the brochure photographs suggest, because the two look similar from the shore.

The bay at Santa Maria is the exception, not the rule

The long beach in front of Santa Maria sits inside a bay that faces away from the prevailing swell. Waves there rarely reach two metres, the undertow that catches people out elsewhere in Cape Verde is weak, and the shallows shelve gently enough that small children can play in them. It is, by a distance, the easiest swimming on the island.

Two things to hold on to anyway. There are no lifeguards. Not at reduced hours, not in high season – there is no lifeguard service on the beach at all, so everyone in the water is responsible for themselves and for whoever came with them. And the pier at the eastern end is a working pier: fishing boats come and go, and the water around it is not swimming water.

Walk or drive a few kilometres out of the bay and the picture changes completely. Ponta Preta, on the west coast, is one of the better-known wave spots in the Atlantic and has hosted international kitesurfing competitions since 2018; the wind there is offshore and the waves can run to several metres. Kite Beach, north of town, is cross-onshore and busy with kites and boards. Neither is a place to swim, and neither is signposted as such. If there are no swimmers in the water and a dozen sails on it, that is the sign.

What there actually is to see under the surface

Sal is volcanic rock, not coral atoll. The reef is patchy, the colour comes from fish rather than from coral gardens, and the good snorkelling is concentrated in a few spots the boats know.

The most-booked option is the guided snorkelling and reef tour from Santa Maria – €43, two hours, 4.3 stars from 1,068 reviews. It works the reefs near Farol and the bay itself, plus the Bolama wreck, and the operator names rays, turtles and eels as what you might see. Might: the listing says plainly that specific sightings cannot be guaranteed, which is the correct thing for a wildlife operator to say and worth more than a promise.

Two details from that listing are worth knowing before you book, because they rule some people out. It is not suitable for children under eight, and it is not suitable for non-swimmers. Equipment, wetsuits and life jackets are provided.

The wetsuit is not decoration. This is the mid-Atlantic, not the Caribbean, and two hours in the water is long enough to get cold even in a warm month.

Other shapes of the same afternoon:

• A snorkelling boat tour – €38, two hours – reaches the Caldeirinha wreck and the underwater Christ statue off Santa Maria, or Murdeira depending on conditions.
• A snorkelling tour led by a marine biologist, also €38 and two hours, is the small-group version and the one to pick if you want the sea explained rather than pointed at.
• A clear kayak tour runs one hour from €35 and keeps you dry, which is the honest answer for people who want to see the water without getting into it.
• For a first time under the surface with a tank, Discover Scuba Diving for beginners takes five hours from €115 and starts in a pool before the sea.

Altogether there are 32 snorkelling and diving trips on the island, from €28.

The question nobody asks until they are on the boat

Most snorkelling here happens from a boat in open water, not by wading in from a beach. That means the deciding factor is not your snorkelling ability but how you are in a small boat on a swell. The bay is calm; two hundred metres past the headland it usually is not.

If that is a concern, book a morning departure. The wind on Sal builds through the day for most of the year, and a 9 am boat and a 3 pm boat on the same route can be two different experiences. Operators here cancel or reroute when it gets rough, usually the evening before – which is a good sign about them, not a bad one.

Turtles are a different trip, and mostly a different season

People often book a snorkelling tour hoping to see a turtle and are disappointed. Turtles do turn up on the reef tours, and some trips are built around swimming with them – 20 of them, from €28 – but the island’s real turtle event happens at night, on the sand, between July and October, and it is regulated. That is a separate article and a separate booking; going out at night to watch a nesting turtle without a licensed guide is illegal here during the season.

The short version, by who you are

Travelling with small children. The Santa Maria bay, in front of the hotels, in the morning. Nothing else on this island is as forgiving, and the most-booked reef tour has an age limit of eight anyway.

A confident swimmer who wants fish. The reef tour, morning slot, wetsuit on.

Someone who has never snorkelled. Take a guided trip rather than buying a mask in town and wading out. The shore entries on this coast are over sharp volcanic rock, and the boats put you straight into the good water.

A kitesurfer or surfer. You already know where you are going. Everyone else should stay out of it – and the full list of island tours from €27 is a better use of a windy day than a swim at Ponta Preta.