Octopus Diving Center
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138 km away as the crow flies
Terceira · Azores · Atlantic
Max. depth · 40 mFurnas, Terceira: Azores wall dive and volcanic caverns
Descend along a dramatic wall into two captivating volcanic caverns at Furnas, where rays and pelagics patrol the depths.
What makes this site special
- Steep wall dive profile
- Exploration of two volcanic caverns
- Unique light effect at cavern exits
- Aggregations of eagle rays (Aetobatus narinari)
- Sightings of brown groupers (Epinephelus marginatus)
- Presence of various pelagic fish
Furnas about the site
The dive at Furnas plunges you along a steep wall, a characteristic feature of the volcanic Azores. From your descent, the dramatic underwater landscape unfolds, a testament to the island's fiery origins. This isn't a gentle slope; it's a direct immersion into the deep, where the ocean floor drops away decisively, inviting you to explore its contours and hidden nooks. The sense of scale here is immediate, with the sheer rock face providing a constant visual reference as you make your way down.
Your exploration will lead you to two distinct volcanic caverns, natural formations carved by ancient lava flows. Entering these cavern systems provides a different dimension to the dive, transitioning from the open ocean feel of the wall to a more enclosed, intimate experience. As you penetrate deeper into their embrace, the ambient light shifts, creating a play of shadows and diffused illumination that paints the volcanic rock in subtle hues.
One of the defining features of these caverns is the access they offer to the surface from within. This unique architectural element allows for a truly memorable light show; as you approach the exits, beams of sunlight pierce the water, creating a stunning visual effect that feels both ethereal and invigorating. It’s a moment where the natural beauty of the underwater world truly comes alive, contrasting the darkness of the cavern with the bright expanse of the ocean above.
As you cruise alongside the wall and near the cavern entrances, keep a keen eye out for the resident marine life. While Furnas is renowned for its spectacular topography, it also hosts aggregations of eagle rays (Aetobatus narinari) cruising majestically in the open water. Brown groupers (Epinephelus marginatus) can be found seeking refuge in crevices and ledges, their wary eyes following your movements as you pass by. Pelagic fish species often frequent the area, drawn by the currents and the wall's rich ecosystem.
Diving Furnas means embracing the dynamic nature of the Atlantic. The wall acts as a magnet for oceanic life, and while you hold your position, various pelagic fish may sweep past, providing a glimpse into the larger marine ecosystem. The interplay of light, the dramatic structure of the volcanic rock, and the potential for encounters with these powerful open-ocean dwellers make Furnas a truly compelling dive, deeply rooted in the raw, untamed beauty of the Azores.
Diving conditions
Furnas is designated as an advanced dive, reflecting the depth and potential conditions encountered. The maximum depth for this site extends to 40 metres, with the shallowest entry point at 5 metres. You should be prepared for these depths when planning your dive here.
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Frequently asked questions about Furnas
What experience level do you need for Furnas?
Furnas is designated as an advanced dive because of its depth and the potential conditions encountered. You should be prepared to descend along a steep wall, explore two volcanic caverns, and manage the transition between open water and more enclosed spaces during the dive.
How deep is Furnas?
Furnas ranges from 5 to 40 metres. The shallowest entry point is 5 metres, while the wall drops to a maximum depth of 40 metres. You should plan your dive around this steep profile and be prepared for the depth reached at the site.
What current and water conditions can you encounter at Furnas?
Furnas has a dynamic Atlantic setting, with potential conditions that contribute to its advanced designation. Currents around the wall attract pelagic fish, and you may need to hold your position while marine life moves through the area. Prepare for changing conditions during the dive.
What can you see while diving at Furnas?
Furnas combines a steep volcanic wall with two volcanic caverns and a distinctive light effect at their exits. You may see aggregations of eagle rays, brown groupers in crevices and ledges, and various pelagic fish moving through the open water near the wall.
