
Arenal Diving Ibiza
PADI 5 Star Dive Resort in San Antonio, operating since 2004 with a four-boat fleet covering Ibiza's west-coast caves, gorgonian walls, and the Don Pedro wreck.
Also known as: El Faro de Santa Eulària, Faro de Santa Eulalia, Faro de Santa Eulària, Lighthouse, Los Faros, Seca Santa Eulalia, faro, The Lighthouse
Sunken navigation beacon on the Seca de Santa Eulalia reef off east Ibiza, with a 2m platform top and reef contours down to roughly 26m.
Last updated May 2026
The boat anchors close to the beacon, so the descent is short. Drop onto the rocky platform at 2-6m, where blue damselfish hang in mid-water and octopus reach across the reef top. The beacon itself sits between roughly 6 and 14m, marking the centre of the seca and serving as the orientation landmark for the rest of the route. Head north-east along the reef contour, descending gently. Boulders and cracks line the way down, and the moray eels and dusky groupers tucked into them are the first signature encounters: groupers tracking divers from inside their hides, morays threading between rocks. Schools of small fish hang above the reef once you look up.
The reef gives way to sand at around 26m, where barracuda usually hover in loose schools or move through the canyon that opens to the right. The canyon is the standard turnaround. From there the route runs back along the reef, passes the beacon for orientation, and finishes with a safety stop at 5m on the platform. Total bottom time runs around 50 minutes when the canyon leg is included.
The seca's geometry is what makes this dive work. A reef that tops at 2m and only reaches 26m at its sand edge stays brightly lit through the water column, and the beacon on the crown acts as a fixed visual anchor that few other east-coast reefs offer. PADI's Spanish coverage describes the conditions as "the light is fantastic" because the site sits in such shallow water, and centres around Cala Pada lean on that quality for ambient-light photography on the platform.
The second draw is the dual profile on a single mooring. The 2-10m crown is shallow enough for introductory dives without leaving the reef. Drop further along the contour and the reef-edge canyon at 24-26m offers a deeper second profile without overhead environments, navigation puzzles, or significant current. Illes Balears Tourism positions the site explicitly for divers in initiation or those who prefer calmer sites, and that framing matches what the reef actually is: a beacon-and-light reef where the deeper version is just deeper, not harder.
The east coast stays relatively dependable in the May-October window under prevailing east winds, but a north-easterly will shut the site down. Check conditions with the dive centre on the morning of the trip rather than assuming the seca is always reachable.
Plan exposure protection for the route you choose. The platform alone is a 3mm summer dive. The canyon leg meets the seasonal thermocline near 20m, so a 5mm with hood is sensible in summer if you intend to drop to the sand, and shoulder seasons reward a 7mm or a semi-dry. Surface boat traffic crosses the seca during the busy season, so finish your safety stop close to the dive boat and use an SMB if you drift off the line.
A few claims about El Faro are worth taking with caution. The structure on the crown is a navigation beacon, not a lighthouse, and the reserve framing some operators use is not backed by a confirmed government designation for this seca. None of that changes the dive on the day, but it is the gap between marketing language and what the reef actually is.
What makes this dive site stand out.
The reef is named after the baliza on its crown, mistakenly called a lighthouse
Shallow platform top with reef contours descending to sand at the deeper edge
Reef geometry keeps the platform brightly lit for ambient-light photography
Natural canyon at the sand zone serves as the standard turnaround point
Easy platform circuit, mid-reef contour, and a deeper canyon route
38.9672°N, 1.6156°E
Summary
Easy on the platform circuit. Moderate on the deeper canyon route, mainly because of depth and the shoulder-season thermocline. No overhead environment and no demanding navigation.
Safety considerations
What can go wrong here, and what divers do about it. Conditions change - take the briefing from the operator on the day.
Book a guided dive at this site.

PADI 5 Star Dive Resort in San Antonio, operating since 2004 with a four-boat fleet covering Ibiza's west-coast caves, gorgonian walls, and the Don Pedro wreck.

First PADI Eco Center in the Balearics and the only PADI 5 Star CDC on the islands, operating year-round from Marina Botafoch with two permanent Course Directors.

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Some dive-centre and PADI sources describe the area as a reserve since 2018, but no Govern de les Illes Balears or BOIB notice has been located covering the east-coast Seca de Santa Eulalia. Treat the reserve label as repeated industry assertion. No site-specific concession or fee documented. Operators sell it within their standard fun-dive programme.
No. The structure on the reef crown is a baliza, a navigation beacon used to warn boats off the shallow seca. Locals call it a faro because the word sounds better than baliza, and dive centres carry the name forward in their marketing.
Yes. The standard route stays well within Open Water limits, and the 2-10m platform on top of the reef is shallow enough for introductory dives. The 24-26m canyon turnaround sits at the OW recreational limit, so it is usually offered to divers comfortable with that depth or to AOW guests.
It is repeatedly described as one in dive-centre and PADI material, but the official reserve boundaries for Cala d'Hort, Es Freus, and the Reserva Marina del Nord d'Eivissa do not confirmably cover this east-coast seca. Until a Govern de les Illes Balears notice surfaces, treat the reserve label as marketing shorthand rather than a verified designation.
May, June, September, and October are the sweet spots: warm water, high visibility, fewer crowds on the boat, and the marine life is active. July and August are warmest but the east coast and Cala Pada area are at peak demand.
Most days, yes. Schools of barracuda hang over the sand at the deeper end and pass through the canyon, while dusky groupers settle into the boulder cracks along the reef and trail divers from inside their hides. Numerous moray eels share the same crevices.
They are two named points on the Seca de Santa Eulalia. El Faro centres on the sunken beacon and the canyon to the sand. La Chimenea is the chimney structure on the same reef and is sold as a separate dive by Aqua Diving Center, with light-shaft effects through the rock.
From late summer into autumn, yes. The thermocline meets the canyon turnaround near the bottom of the route, and surface temperatures in the mid-twenties can drop to around 19C at depth. A 5mm with hood handles a summer canyon route comfortably; shoulder seasons reward 7mm or a semi-dry on the deeper leg.
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