

Best for intermediate divers, 13-24m, boat entry, moderate current.
Les Arches is a reef site located off Sakata, Madagascar, characterised by distinct arch formations. The topography features a mix of natural reef and artificial reef structures, providing varied terrain between 13 and 24 metres depth. Divers should expect moderate currents that can strengthen unexpectedly, requiring careful monitoring. Visibility is variable, ranging from 5 to 25 metres. Access is by boat only, and guided tours are recommended due to the shifting conditions. Night diving is available at this location. With an average depth of 18 metres and a typical dive time of 50 minutes, this site is suited for intermediate divers.
-13.18600, 48.06990
Deploy reef hooks immediately upon reaching the main arch as the limestone provides excellent anchor points and current strength can double without warning.
The site is located west of Nosy Sakatia and requires boat access.
Recorded at this site
Depth
13-24m
Visibility
5-25m
Skill Level
Intermediate
Entry
Boat
Boat required
Water Temp
27-29°C
Current
Moderate
Typical Dive
50 min
Best Time
Apr, Oct
The site ranges from 13 to 24 metres, with an average depth of 18 metres.
No, Les Arches is rated for intermediate divers due to moderate currents that can strengthen without warning and variable visibility.
Access is by boat only, and it is recommended to use a guided tour operator.
April and October are the best months to visit, as they offer the most reliable visibility and more manageable currents.
Divers should be prepared for low visibility and strong, unpredictable currents.
Diving at Les Arches in Nosy Be requires the following certifications: Open Water. Always dive within your training limits.
A rashguard or 2mm shorty is recommended for diving at Les Arches in Nosy Be. Water temperatures range from 27°C to 29°C.
The best months to visit Les Arches in Nosy Be are April and October. Conditions outside these months can still be good but are less predictable.
Expect moderate currents at Les Arches in Nosy Be. Good buoyancy control and some drift diving experience is helpful.
Visibility at Les Arches in Nosy Be typically ranges from 5 metres to 25 metres. Conditions vary with weather, tides, and seasons.