Funnels, Menorca: a complex system of interconnected rock chimneys

The Funnels, also known as S’Algar Funnels, is defined by a complex geological structure that differentiates it from the standard reef walls found elsewhere in Menorca. The site consists of a system of rock chimneys and two distinct caverns that are vertically superimposed. These two main cavities are linked by an internal chamber and several narrow passages, creating a multi-level environment for exploration. This topology requires careful buoyancy control and navigation to move effectively between the different sections of the system.

Approaching the site usually involves a short five-minute boat ride from the local dive centers, as the most interesting features are situated away from the immediate shoreline. Once you arrive, the mooring is positioned near the main cavern system to allow for a controlled descent. The topography is characterized by how the upper cave opens toward the surface near the rocky coastline of S’Algar, while the lower cavern sits deeper. This vertical relationship between the two levels provides the site with its unique structural identity.

As you descend, the lighting becomes the primary feature of the dive. The lower cavern features a large arched opening that allows shafts of sunlight to penetrate down to approximately 20 metres. This creates a sharp backlight effect, where the silhouettes of the rock formations and your dive buddies are sharply defined against the incoming light. Moving through the passages requires you to manage these light transitions carefully, as you shift from the bright upper zones into the more shaded, cavernous interiors.

The chimneys act as conduits between the different depth zones, providing vertical movement options that are rare in the surrounding area. These narrow passages demand precise movement to avoid contact with the rock surfaces. Exploring the internal chamber that connects the two levels allows you to see the site from a completely different perspective than a standard open-water dive. You are essentially navigating a three-dimensional puzzle of stone and light rather than simply following a wall or a bottom contour.

The depth profile of the Funnels is relatively compact, ranging from 8 metres in the shallower sections to 28 metres in the deeper parts of the lower cavern. This makes it a versatile site for those looking to practice cave-like navigation in a controlled, open-water setting. Because the structure is so interconnected, you can often find yourself in a deep, shaded zone before realizing you are only a few meters away from a shallower chimney exit. This constant change in depth and light keeps the dive profile engaging.

Navigation at this site is as much about verticality as it is about horizontal direction. Instead of just following a compass heading, you will find yourself managing your ascent and descent through the various openings and chimneys. The way the upper cave communicates with the surface through the rocky shore adds a sense of connection to the island itself. It is this specific arrangement of interconnected voids and light-filled arches that makes the Funnels a standout location in the Menorcan marine environment.