One of the most remote and protected ecosystems on Earth, Aldabra Atoll rewards the few expedition cruisers who make it here with 100,000+ free-roaming giant tortoises, a flightless rail found nowhere else, and reefs that have barely seen a human shadow.
Access is tightly controlled by the Seychelles Islands Foundation (SIF) — your ship coordinates permits in advance; all landings are via Zodiac and guided by SIF staff.
💡 Pro move: Permits require 6–8 weeks' advance application through SIF. Your expedition operator handles this — confirm your visit is authorised before boarding.
Aldabra has no pier, jetty, or port infrastructure — all arrivals are by Zodiac to open beaches or channel shores.
| Cruise Line | Typical Berth / Arrival | Dock or Tender |
|---|---|---|
| Expedition cruise lines (Silversea, Ponant, Quark, etc.) | Picard (West) Island beach / lagoon channels📍 | Tendered |
| Private or charter yachts (SIF-permitted) | Designated anchorage zones📍 | Tendered |
Every excursion here is a guided nature experience — Aldabra has no towns, markets, or tourist infrastructure, just one of the planet's last intact wilderness ecosystems.
Walk the limestone scrub of Picard Island alongside free-roaming Aldabra Giant Tortoises — over 100,000 live on the atoll. Your SIF guide explains their ecology and the 'tortoise turf' habitat they have shaped over millennia.
Book expedition tortoise walks →Search for the Aldabra Rail — the Indian Ocean's last flightless bird — along with the Aldabra Drongo, frigatebird colonies (the Indian Ocean's largest), red-footed boobies, and greater flamingos in the lagoon shallows.
Find birding expedition tours →Explore the vast tidal lagoon and channel passages by inflatable boat. Spot green and hawksbill turtles, blacktip reef sharks, manta rays, and dense reef fish populations in water that sees fewer than 1,000 visitors per year.
Find snorkelling expedition tours →Seasonally (primarily November–February), green sea turtles nest on Aldabra's beaches in numbers rare across the Indian Ocean. SIF guides lead careful, non-disruptive viewing at active nesting sites.
Book turtle nesting experience →Pick your way across Aldabra's extraordinary eroded limestone 'champignon' formations — a moonscape riddled with tide pools, land crabs, coconut crabs, and basking giant tortoises. Unlike anywhere else on Earth.
Find guided atoll walks →All walks on Aldabra are guided by SIF naturalists — independent exploration is not permitted, but guided trails on Picard Island deliver extraordinary wildlife at every step.
The main guided walk from the SIF research station into the scrub interior of Picard Island, weaving past giant tortoises and endemic birds on the atoll's signature champignon limestone surface.
📍 Open in MapsA gentler shoreline walk along the lagoon-side of Picard Island, passing mangrove edges and shallow tidal flats where flamingos and herons feed, with constant tortoise company.
📍 Open in MapsClimate normals for Aldabra Atoll, Outer Islands, Seychelles (2014–2023 averages). Pack for the month you sail — highs, lows, and how many rainy days to expect.
| Month | Avg High | Avg Low | Rainy Days |
|---|---|---|---|
| Jan | 82°F / 28°C | 79°F / 26°C | 23 |
| Feb | 83°F / 28°C | 80°F / 27°C | 15 |
| Mar | 84°F / 29°C | 81°F / 27°C | 16 |
| Apr | 84°F / 29°C | 81°F / 27°C | 18 |
| May | 83°F / 28°C | 80°F / 27°C | 22 |
| Jun | 81°F / 27°C | 79°F / 26°C | 18 |
| Jul | 79°F / 26°C | 77°F / 25°C | 15 |
| Aug | 79°F / 26°C | 77°F / 25°C | 13 |
| Sep | 80°F / 27°C | 78°F / 26°C | 18 |
| Oct | 81°F / 27°C | 79°F / 26°C | 17 |
| Nov | 82°F / 28°C | 79°F / 26°C | 19 |
| Dec | 82°F / 28°C | 79°F / 26°C | 24 |
Source: Open-Meteo ERA5 (10-yr daily averages)
Upcoming cruises that call at Aldabra Atoll, Outer Islands, Seychelles. Dates, prices, and ports of call change — always confirm with the cruise line before booking.
Itineraries and prices change — always confirm with the cruise line before booking. Some links are affiliate links that may earn us a commission at no extra cost to you.