Desertas Islands: A Sea-Swept Reserve Where Seals Rule and Trails Run Wild

Desertas Islands: A Sea-Swept Reserve Where Seals Rule and Trails Run Wild

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

Funchal, Madeira•By Eric Crews•Boat Charters,Water Activities,Wildlife Nature•September•late summer / early fall
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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.

Duration5–8 hours (typical day trip)
Plan your visit

Trail Wisdom

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.

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.

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.

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

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

Wildlife

Mediterranean monk seal (Monachus monachus), Cory’s shearwater (Calonectris borealis)

Conservation Note

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

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.

Seasonal Guide

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.

Photographer's Notes

Bring a telephoto lens (200–400mm) for seabirds and seals, and a polarizing filter to cut glare on the water; shoot from the boat’s lee in choppy conditions and favor low sun (early morning or late afternoon) for sculpted cliffs and warmer color. If using a drone, check regulations—drones are often restricted over nature reserves.

What to Bring

Windproof shell or light jacket

Essential

Protects against sea spray and the constant wind on the islands.

Sturdy trail shoes or trail runners

Essential

Provides grip on loose volcanic rock and safety on uneven island trails.

Reef-safe sunscreen and sun protection

Essential

Reduces environmental impact and prevents sunburn during long exposures on deck or shore.

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Waterproof camera or action camera with float

Captures snorkeling and wildlife moments safely—use a floating strap for boat conditions.

Common Questions

How long is the boat ride from Funchal to the Desertas?

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

Can visitors land on the Desertas Islands freely?

No—landing is controlled and typically only allowed in designated areas with a guide to minimize disturbance to wildlife and habitats.

What wildlife can I expect to see?

Common sightings include dolphins and various whale species offshore, and seabirds like Cory’s shearwater and Bulwer’s petrel; Mediterranean monk seal sightings are rare but possible.

Is snorkeling good around the islands?

Yes—the water is often clearer around the Desertas than nearshore Madeira; bring or rent snorkel gear and a wetsuit in cooler months.

Are there facilities on the islands (toilets, food)?

No—there are no visitor facilities on Deserta Grande; boats typically provide snacks or encourage bringing water and food for the day.

Are trips suitable for children and seniors?

Many operators allow families and older travelers, but consider seasickness susceptibility, the physical demands of landing, and limited facilities—check with the operator before booking.

What to Pack

windproof jacket (wind protection), reef-safe sunscreen (protect marine life), sturdy trail shoes (safe footing), snorkel mask and fins (better underwater access)

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.

Quick Travel Tips

1) Book morning departures from Funchal to maximize calm seas; 2) Bring cash for marina fees or small purchases in Funchal; 3) Pack a dry bag for electronics; 4) Confirm weather cancellation and refund policy before booking.

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.

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