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Desertas Islands
boat-charters · water-activitiesFunchal, Madeira

Desertas IslandsA Sea-Swept Reserve Where Seals Rule and Trails Run Wild

A day of windswept cliffs, rare seals, and clear-water snorkeling reachable from Funchal

By Eric CrewsDecember 2025late summer / early fall
Duration5–8 hours (typical day trip)
Difficultymoderate
Formatattraction

What the day feels like

The morning the sea first reclaims the light around Funchal, the Desertas Islands appear as a line of bruised gold—low, jagged silhouettes hung off Madeira’s southeastern flank. You leave the marina with the harbor receding, the city’s basalt cliffs shrinking into a rim of green and stone, and the Atlantic pressing an honest rhythm against the hull. By the time the silhouette resolves into shore, the day has a single purpose: wildlife, wind, and a raw taste of islands that have been largely left alone.

The Desertas (Ilhas Desertas) are not a chain of postcard beaches. They are a nature reserve, a fringe of volcanic rock and cliffs that feel engineered by a sea with opinions. Most visitors come on a boat charter or a private catamaran from Funchal—comfortably, and with a trained crew—and spend the day anchored in clear water, watching for dolphins and whales on the approach, walking the wild trails that thread the main island, or slipping into water that is still startlingly blue.

Geologically, the islands are younger cousins of Madeira: raw basalt cliffs and pumice-strewn shorelines carved into ridges and ravines by centuries of waves and wind. Deserta Grande, the principal island, offers stony ridgelines and steep inlets rather than sandy coves; the smaller islets—Ilhéu Chão and the narrow Bugio—are exposed, pummeled, and exquisitely unadorned. That exposed quality is why they matter: they’re among the last refuges for a list of species that don’t coexist easily with people.

History here is quieter than on mainland Madeira. The islands were briefly used by fishermen and sealers in the 18th and 19th centuries; overexploitation of monk seals and other creatures marked those years. In modern times, the Desertas were designated a nature reserve in the 1990s, a move that limited access and began the slow work of recovery. Today, the island’s star attraction—the Mediterranean monk seal—has a tenuous foothold here. Sightings are rare and shaky with luck, but the potential to see one of Europe’s most endangered marine mammals is one of the reasons people make the trip.

A typical day-trip follows a familiar arc: a one- to one-and-a-half-hour crossing from Funchal (longer on slower cruisers), a circumnavigation for wildlife watching, then a stop to land on Deserta Grande with a guided walk or a free window for snorkeling, swimming, and sunning on the bow. The boat trip itself is part of the story—dolphins often ride the bow wake, and in the deeper channels off Madeira you’ll sometimes spot baleen whales and pilot whales. Guides are usually bilingual and experienced with the reserve’s landing rules: you’ll rarely be allowed to roam freely, and access to certain coves is restricted to minimize disturbance.

On land the walking is immediate and honest. Trails are short—expect sections of 2–4 kilometers on well-worn goat paths—but they’re uneven, often steep, and backed by sheer ocean views. The color palette here is volcanic earth and salt-twisted scrub; wind-swept stones stand like small monuments. Don’t expect cafes or shade. Expect wind. Expect the clear, sharp smell of a sea that has spent centuries arguing with rock.

Why go? Because it’s one of the clearest, most direct ways to feel what conservation looks like when it’s allowed to take its course. The Desertas offer a kind of isolation you can reach from Funchal in a single morning and return the same day—an accessible, low-footprint wilderness you can respect without giving up comfort. For photographers and naturalists, the islands provide bird colonies (Cory’s shearwaters, Bulwer’s petrels), dramatic cliffscapes, and a coastline that refuses to be decorative. For swimmers and snorkelers, the water around the islands tends to be cleaner and clearer than much of Madeira’s nearshore.

Practicalities matter here. Boat charters and private catamarans are the best ways to experience the islands; the choice changes the mood. A private catamaran lets you tailor the day—more snorkeling time, a quieter anchorage—while a scheduled boat trip is often more budget-friendly and equally likely to deliver wildlife sightings. Most trip lengths range from 5–8 hours, with boarding and disembarkation in Funchal.

Timing and packing are simple but decisive. Seas are calmer from late spring through early fall; summer months offer the warmest water and the best snorkeling. Bring windproof layers, reef-safe sunscreen, a long lens for bird and seal shots, and shoes with decent grip for the island’s steeper rock sections. Guides will brief you on how close you can get to wildlife: seals are protected and approachable only on their terms. The islands will test your patience—rare sights and quiet moments are part of the reward.

If you want more than a day, consider a longer private charter that includes Porto Santo or the western cliffs of Madeira. Otherwise, a single day anchored off Deserta Grande, watching shearwaters wheel and listening to a crew explain the islands’ recovery story, is enough to change the way you think about remote places that are still close to home.

On the way back, with Funchal’s terraced hills returning to view, take stock of the simple arithmetic of a visit here: a field of raw rock, a handful of protected species, an invested crew, and an ocean that will always be a little larger and a little stranger than we feel on land. That’s the point. The Desertas are not about conquest or comfort; they’re a reminder that sometimes the best thing a traveler can do is arrive, witness, and leave the space a fraction better than they found it.

Trail wisdom

Small choices, better day.

01

Bring layers and a windproof jacket

Even in summer the channels around the Desertas are windy; a lightweight, windproof layer makes boat rides and shoreline walks comfortable.

02

Use reef-safe sunscreen

The islands are a protected marine reserve—use reef-safe sunscreen to reduce chemical impacts on marine life when snorkeling or swimming.

03

Wear shoes with grip for island trails

Trails are short but rocky and steep in places; sturdy hiking shoes or trail runners will protect ankles and provide traction.

04

Respect wildlife distances

Monk seals and nesting seabirds are protected; follow your guide’s instructions and do not approach resting seals or bird colonies.

Local knowledge

Read the place, not just the route.

Wildlife

Watch for native species including Mediterranean monk seal (Monachus monachus), Cory’s shearwater (Calonectris borealis).

Keep an eye out for wildlife during the transition between areas and habitats. Respect distance guidelines.

Stewardship

Access is regulated to protect breeding seabirds and marine mammals; operators follow permit rules and zoning to limit human impact.

Follow the guide's instructions on size limits, ethical handling, and leave-no-trace practices.

Hidden gems

West-facing viewpoint on Deserta Grande for late-afternoon light and sheer-cliff panoramas. The sheltered cleft on Ilhéu Chão where calm water pools can be surprisingly clear for snorkeling

Locally recommended viewpoints and quiet spots known best to local operators.

History & lore

The islands were historically visited by fishermen and sealers; recognizing ecological decline led to the reserve designation in the 1990s and stricter protections since then.

Maritime roots and regional tradition shape the waterways and working coasts.

Seasonal guide

Four versions of the same landscape.

Spring

Best for

migratory seabirds · calmer seas than winter · wildflower accents on cliffs

Challenges

unpredictable showers · cooler water temperatures

Spring brings clearer skies and bird migration; water is brisk but wildlife activity increases—pack a warm layer and a wetsuit for snorkeling.

Summer

Best for

warmest sea temperatures · best snorkeling visibility · longer daylight for circumnavigations

Challenges

more visitors on popular charters · strong sun exposure

Summer is ideal for swimming and clear water, but book trips early and arrive with sun protection and hydration.

Fall

Best for

calmer seas after summer · good visibility for wildlife · milder temperatures

Challenges

shortening daylight hours · occasional north Atlantic swells

Late summer and early fall provide steady conditions and warm water with slightly fewer crowds—great for private charters.

Winter

Best for

dramatic seascapes · storm-watching from a safe distance · lower prices on some tours

Challenges

rough seas and cancellations · colder water and wind

Winter shows the islands’ raw side; crossings are rougher and landings may be restricted—expect some cancellations and dress warmly.

Pack with intention

What to bring.

✓Windproof shell or light jacket✓Sturdy trail shoes or trail runners✓Reef-safe sunscreen and sun protection✓Waterproof camera or action camera with float

Good to know

Common questions.

Crossing typically takes about 60–90 minutes depending on the vessel and sea conditions; faster private catamarans are usually quicker.

Plan the edges

The details that make the day easier.

Did you know?

The Desertas Islands are a designated nature reserve and are one of the few places where the endangered Mediterranean monk seal may still be encountered in European waters.

Local flavor

Funchal’s maritime culture threads into Desertas trips—book after your tour for espada (black scabbardfish) with bananas and bolo do caco bread, and sample local poncha on the harbor to round out a day at sea.

Logistics snapshot
Boarding
Funchal marina; Duration: 5–8 hours; Best time: May–October; Bookings: reserve in advance for summer; Facilities: none on islands; Wildlife: protected—follow guide rules.
Sustainability note

Choose licensed operators who adhere to reserve landing rules, use reef-safe products, and brief passengers on wildlife etiquette to minimize disturbance to seals and nesting birds.

Explore by topic

Follow the threads.

Keep exploring

Make the story part of the trip.

Field notes worth taking

The best booking pages tell you what can be reserved. The best journals tell you why it matters.

Open the journal →