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Best Time for Snorkeling in Seychelles

Seychelles is a year-round snorkeling destination, but conditions vary by season.

Dry Season (May–October)

Best Overall
  • Visibility: 20–30 meters
  • Water temp: 24–27°C
  • Less plankton = clearer water
  • Trade winds bring mild swell to north coasts
  • Best for: All islands, especially Praslin and La Digue

Wet Season (November–April)

Good, Hotter
  • Visibility: 10–20 meters
  • Water temp: 27–30°C
  • More plankton = more marine life
  • Calmer north coasts, rough south coasts
  • Best for: Manta rays at certain cleaning stations
Pro Tip September and October are the sweet spot — calm seas, excellent visibility, and fewer crowds than July–August. Water is warm enough that a wetsuit is optional (though a 2mm shortie helps if you're prone to cold).

Mahé — Best Snorkeling Tours

Mahé is the main island and the arrival point. The best snorkeling is on the west and south coasts, plus nearby marine parks.

1. Sainte Anne Marine National Park Tour

Duration: Half-day (4 hours) · Price: $45–70

This is the most popular day trip from Mahé. The park covers six small islands just off Victoria. You'll visit 2–3 snorkeling spots with coral gardens, parrotfish, angelfish, and green sea turtles. Most tours include beach time on Cerf Island and lunch.

Best for: First-time visitors, families, anyone short on time.

What you'll see: Green turtles, triggerfish, parrotfish, angelfish, occasional eagle rays.

2. West Coast Reef Tour (Port Launay / Baie Ternay)

Duration: Full day (6–7 hours) · Price: $70–100

The west coast marine parks (Port Launay and Baie Ternay Marine Park) have the healthiest coral reefs on Mahé. The water is calmer than the east coast, making it ideal for beginners. Tours include snorkeling gear, lunch, and drinks.

Best for: Coral lovers, intermediate snorkelers.

What you'll see: Healthy staghorn and table corals, clownfish, surgeonfish, bannerfish.

Praslin — Best Snorkeling Tours

Praslin is Seychelles' second-largest island, home to Anse Lazio (consistently ranked one of the world's best beaches) and the UNESCO-listed Vallée de Mai.

3. Anse Lazio + Coco Island Tour

Duration: Full day (7–8 hours) · Price: $80–120

The classic Praslin combo. You'll take a boat to Coco Island and surrounding islets for snorkeling in the late morning (the best light), then head to Anse Lazio for an afternoon on the beach. The snorkeling at Coco Island is Seychelles' best — turtles, reef sharks, and enormous Napoleon wrasse.

Best for: Experienced snorkelers, photographers.

What you'll see: Hawksbill turtles, whitetip reef sharks, Napoleon wrasse, giant trevally, octopus.

4. St. Pierre Island Tour

Duration: Half-day (4 hours) · Price: $50–80

St. Pierre is a tiny granite island off Praslin's west coast. The snorkeling is excellent on all sides — the island acts as a natural reef. It's a popular spot but never feels crowded. Most tours also stop at nearby Curieuse Island for the giant tortoise sanctuary.

Best for: Quick trip from Praslin, families.

What you'll see: Giant tortoises (on Curieuse), turtles, colorful reef fish, moray eels.

La Digue — Best Snorkeling Tours

La Digue is the most laid-back of the three main islands. Bicycles are the primary transport and the snorkeling is just offshore in several spots.

5. Anse Source d'Argent + Surrounding Islets Tour

Duration: Half-day (4 hours) · Price: $40–65

Anse Source d'Argent has the iconic Seychelles landscape — massive granite boulders in crystal water. The snorkeling is best around the rocks where small fish gather. Tours extend to nearby islets for more remote spots. This is the most photographed beach in Seychelles for good reason.

Best for: Photography, casual snorkeling.

What you'll see: Damselfish, sergeant majors, butterflyfish, baby blacktip reef sharks in the shallows.

6. Grand Soeur & Petite Soeur Full Day

Duration: Full day (7–8 hours) · Price: $90–130

Two uninhabited islands northeast of La Digue. The snorkeling here is pristine — no development, minimal visitors. The current can be strong around the points, so it's best for intermediate-to-advanced snorkelers. Lunch is typically a beach barbecue.

Best for: Adventure, exclusive experience.

What you'll see: Eagle rays, stingrays, turtles, reef sharks, large schools of jacks and trevally.

Tour Comparison Table

Tour Location Duration Price Difficulty Rating
Sainte Anne Marine Park Mahé 4h $45–70 Beginner ⭐ 4.5/5
Port Launay / Baie Ternay Mahé (west) 6–7h $70–100 Beginner ⭐ 4.7/5
Anse Lazio + Coco Island Praslin 7–8h $80–120 Intermediate ⭐ 4.8/5
St. Pierre Island + Curieuse Praslin 4h $50–80 Beginner ⭐ 4.6/5
Anse Source d'Argent Tour La Digue 4h $40–65 Beginner ⭐ 4.4/5
Grand Soeur & Petite Soeur La Digue 7–8h $90–130 Intermediate+ ⭐ 4.9/5
Pro Tip The Coco Island tour (from Praslin) is widely considered the best snorkeling in Seychelles. Book it on a weekday (fewer boats). The Grand Soeur tour is second — slightly harder to get to but the reefs are untouched.

What to Bring

  • Reef-safe sunscreen — regular sunscreen kills coral. Brands like Stream2Sea or Sun Bum. This is non-negotiable in Seychelles.
  • Rash guard / UV shirt — better than reapplying sunscreen every hour
  • Waterproof phone pouch — for photos at the surface
  • Dry bag — for your towel and valuables
  • Snorkel vest — free on all tours; use it if currents are present
  • GoPro or underwater camera — the granite boulder formations underwater are unique to Seychelles

Most tours provide high-quality snorkel masks and fins. If you have a good mask, bring it (the rental ones fog quickly).

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