Mahe & Praslin Diving — Seychelles

The Seychelles' inner islands offer diving among massive granite boulders — a unique underwater topography found nowhere else. Whale sharks visit from October to January, turtles are year-round residents, and the reefs recovered impressively after the 1998 bleaching event. The above-water scenery is just as spectacular.

Score
64.2 / 100
Country
Seychelles
Region
Indian Ocean
Area
Seychelles
Nearest airport
Seychelles (SEZ)
Visibility
6–24 m
Water temperature
26–30 °C
Max depth
30 m
Current strength
moderate
Dive types
reef, pelagic
Best months
March, April, May, October, November
Minimum certification
Open Water
Access type
boat
Average 2-tank dive cost
$90 USD
Budget tier
mid range
Key species
manta ray, whale shark, reef shark, nudibranch, eagle ray, whale
Google rating
0 (0 reviews)
Top operators
Blue Sea Divers, Octopus Dive Centre
Nearest hyperbaric chamber
Seychelles Hospital Hyperbaric Chamber, Victoria (Mahe) (~5 km)
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World Class
Intermediate
Mahe & Praslin
SeychellesIndian Ocean
64.2

SCORE

-4.6833°N

55.4667°E

The Seychelles' inner islands offer diving among massive granite boulders — a unique underwater topography found nowhere else. Whale sharks visit from October to January, turtles are year-round residents, and the reefs recovered impressively after the 1998 bleaching event. The above-water scenery is just as spectacular.

Seychelles' Granite Boulder Diving

Visibility6–24 m
Temperature26–30°C
Max Depth30 m
Currentmoderate
2-Tank Dive$90
Best MonthsMarch, April, May, October
CertificationOpen WaterIntermediate

Score Breakdown

Click any score to see a detailed breakdown

ML73.0CH72.0VIS61.0SV44.0TMP72.0DA56.0OP73.0TS64.0GT68.0VAL56.0CRD59.0SP57.0

Marine Life

73.0

Species diversity, megafauna encounters, reef fish abundance, macro life, and endemic species.

Species Diversity
96
Megafauna Encounters
56
Reef Fish Abundance
98
Macro Life
30
Endemic Species
60
Marine Life Diversity
73.0
Coral & Reef Health
72.0
Visibility & Conditions
61.0
Dive Site Variety
44.0
Water Temperature
72.0
Depth & Access
56.0
Operator Quality
73.0
Topside Experience
64.0
Getting There
68.0
Value & Cost
56.0
Crowding
59.0
Social Proof
57.0

Key Species

manta raywhale sharkreef sharknudibrancheagle raywhale

Dive Types

reefpelagic

Traveling with Non-Divers?

Your non-diving travel companions will find plenty to enjoy topside while you're underwater. Here are some activities to consider.

Activities for Non-Divers

Anse Source d'Argent beach (La Digue)Vallée de Mai (UNESCO, coco de mer palms)snorkeling at St. Anne Marine ParkMorne Seychellois hikegiant tortoise sanctuaries

Nearby Cultural Sites

  • Vallée de Mai (UNESCO)
  • Victoria Clocktower (smallest capital)
  • Mission Lodge viewpoint

Non-Diver Partner Score

9/10

Excellent for non-divers — they'll love it here.

Family FriendlyYes
Restaurants & Nightlifemoderate

Safety & Emergency

Dive Insurance

Dive insurance is essential. Standard travel insurance often excludes scuba diving. We recommend DAN (Divers Alert Network) for comprehensive dive accident coverage.

Learn More at DAN.org
Hyperbaric Chamber5 km — Seychelles Hospital Hyperbaric Chamber, Victoria (Mahe)
Nearest Hospital5 km

Chamber on Mahe; good hospital in Victoria; air ambulance to Nairobi or Reunion for serious cases

Skill LevelIntermediate
Current Strengthmoderate

Top Operators

Blue Sea Divers

PADI

4.7
190 reviewsNITROX

Octopus Dive Centre

PADI

4.6
150 reviewsNITROX
Compare This Dive Site
Current conditions
10/10
Waves0.92 m
Swell0.56 m
Wind13 km/h
Air27.3°C
Partly cloudy
9d ago
Honest reality check

What your dive shop won't tell you

The minimum certification printed on a brochure is the legal floor, not the honest recommendation. Here's what we actually think you should bring to this site.

Recommended logged dives
25+

Below this we'd send you somewhere easier first.

Recommended certification
Open Water
“Granite boulder reefs unlike anything else in the Indian Ocean. The topography alone is worth the trip.”

What will challenge you

  • →Moderate currents. Expect to drift — this is not a skill-builder site for a first trip after certification.
  • →Viz variable — 10-25m depending on plankton. Don't expect Red Sea clarity.

What will surprise you

  • →Thermoclines can drop water temp by 4°C between the surface and depth. Your wetsuit choice should match the minimum, not the average.
Time of day

When to dive it

Every dive shop gives you this briefing at 7am. We just wrote it down. Tidal dependency: slight. Optimal window: Apr-May and Oct-Nov for best viz. NW monsoon brings whale sharks..

Morning
  • Viz
    high
  • Current
    moderate
  • Crowd
    light
  • granite boulder reefs
  • whale sharks
  • wide angle

Seychelles diving defined by granite boulder topography — massive smooth rocks creating unique swim-throughs. Morning at Shark Bank for grey reef sharks.

Afternoon
  • Viz
    high
  • Current
    moderate
  • Crowd
    moderate
  • Brissare Rocks
  • turtle snorkel
  • reef dives

Brissare Rocks afternoon for best fish aggregation around Mahé.

Month-by-month

Dive forecast

Realistic conditions by month. Viz ranges are what you should actually expect, not best-case marketing numbers. Confidence % is the share of days that match this profile historically.

Month Viz (m) Temp (°C) CurrentSea RainConfidenceHighlights
Jan9–1529ModChopWet65%conditions vary
Feb8–1329ModChopWet78%conditions vary
Mar9–1529ModChopWet88%conditions vary
Apr10–1928ModChopLight88%conditions vary
May10–2028ModCalmDry88%conditions vary
Jun11–2227ModCalmDry78%conditions vary
Jul11–2427ModCalmDry65%conditions vary
Aug11–2427ModCalmDry65%conditions vary
Sep11–2228ModCalmDry78%conditions vary
Oct10–2028ModCalmDry88%conditions vary
Nov10–1928ModCalmDry88%conditions vary
Dec9–1529ModChopLight78%conditions vary
Shoot here

Photography brief

Subjects are only half the shot. A perfect macro site is useless in a three-knot drift, and a wide-angle dream is useless at 35 m with a murky ceiling. These are the conditions, not the hype.

Macro subjects49
Wide angle62
Viz stability58
Hover friendliness70
Natural light52

Recommended kit

  • →General reef kit — mid-range wide or a 60mm macro depending on the specific site
Level up here

What this site will teach you

The dives that made you a better diver are the ones that made you uncomfortable for the right reasons. Here's what this site will quietly train you for.

What it costsEstimates — calibration pending

7-day trip, per person

Rough ranges anchored to existing regional data — not booking quotes. Land-based trip, standard breakdown.

Budget
$2,400–$3,500

Hostels, shore diving, cheap eats

Flights (RT from US)
$1,150–$1,450
Accommodation / day
$50–$100
Diving / day
$80–$90
Food / day
$40–$80
Transfers + misc
$50–$150
Mid-range
$3,850–$5,750

3-star hotels, standard boat ops, mix of restaurants

Flights (RT from US)
$1,700–$2,100
Accommodation / day
$120–$220
Diving / day
$90–$120
Food / day
$90–$160
Transfers + misc
$50–$150
Splurge
$6,450–$10,250

Top resorts or liveaboards, premium operators

Flights (RT from US)
$2,500–$3,100
Accommodation / day
$260–$500
Diving / day
$120–$150
Food / day
$180–$350
Transfers + misc
$50–$150

Flights priced round-trip from a major US hub. Figures are per person on a shared room. Solo travelers add ~30% to accommodation.

Pair with

Build a trip around it

Most divers fly across the world for one destination and don't realise another worth-it site is 90 minutes away. Here are the honest pairings.

Best dive types here