Roca de Santa Anna

Deep pyramidal pinnacle at 25-36 m off Tossa de Mar, a documented sunfish cleaning station with large conger eels and spiny lobsters.

Last updated April 2026

The dive

The anchor line drops into blue water and the rock materialises below: a dark pyramid rising from sand at 34-36 m. The top sits at 25-26 m. Most divers orbit at 28-32 m, working the holes and crevices that pepper the formation. Conger eels wedge into gaps, some large enough that local divers call them monstrous. Spiny lobsters back into the deeper holes. A small rocky ridge extends from the north side towards the east, worth a detour before completing the circuit. The route around the rock is compact. Twenty minutes at 32 m is about all a single tank on air allows before decompression obligations take over. The ascent follows the anchor line, with stops that stretch total dive time to around 44 minutes.

What makes it special

Two things set Roca de Santa Anna apart from everything else in Tossa. It is the deepest standard dive in the area. Where other sites top out between 15 and 25 m, this one starts at 25 m. The depth attracts a different crowd: experienced divers who arrive at dawn with twin-sets and stages, planning deco profiles rather than sightseeing routes. The second draw is the sunfish. The pinnacle functions as a cleaning station for Mola mola, active broadly from March to October with a summer peak. Few sites on the Costa Brava offer a documented cleaning station. Encounters depend on season and luck, but the site's reputation among Tossa's diving community rests on those summer mornings when a sunfish glides in to be cleaned.

Know before you go

Air management is everything. At 32 m, consumption climbs and bottom time shrinks fast. Nitrox is worth it. Some centres hang a spare bottle with three second stages at the mooring as a safety measure during deco stops. Bring a torch for the crevices. Visibility is unpredictable: 15-20 m on a good day, under 5 m on a bad one. The boat ride is one of the longer ones from Tossa port, and tramontana wind cancels the trip. Below the thermocline, bottom water drops to 16-20 C in summer. A 5 mm wetsuit is borderline for extended bottom time at this depth. Pack a hood.

Why Dive Roca de Santa Anna

What makes this dive site stand out.

  1. 1
    Sunfish cleaning station

    Documented Mola mola cleaning activity, peak summer (Jun-Aug), broadly Mar-Oct.

  2. 2
    Pyramidal pinnacle at depth

    Rock rises 8 m from sandy bottom at 34-36 m, with holes and crevices throughout.

  3. 3
    Decompression profile

    At 32 m, bottom time is about 20 minutes before deco stops become mandatory.

  4. 4
    Large crevice dwellers

    Oversized conger eels and spiny lobsters inhabit the deep rock year-round.

Depth & Profile

25m
Min depth
36m
Max depth
28–32m
Typical range
PinnacleSandRock

Location

41.7201°N, 2.9410°E

Conditions

Temperature
13°C26°C
Visibility
5–20m
Current
negligible

Difficulty & Certification

AdvancedMin cert: AOWNitrox recommended

Deep pinnacle where decompression is almost certain. Air management critical at 32 m with roughly 20 minutes of bottom time on a single tank.

Frequently Asked Questions

What certification do I need for Roca de Santa Anna?
Advanced Open Water or equivalent (CMAS 2-star). Most centres also recommend a Deep Diver specialty because the site sits at 25-36 m and decompression stops are nearly guaranteed. Technical divers with twinset configurations visit for extended bottom time.
Will I go into decompression at Roca de Santa Anna?
Almost certainly. At 32 m on air, you get roughly 20 minutes before mandatory decompression. Some centres hang a spare bottle with regulators at the mooring line as a safety precaution. Nitrox extends your available time.
When is the best time to see sunfish at Roca de Santa Anna?
The cleaning station is active broadly from March to October, with peak sightings between June and August. Encounters are seasonal and never guaranteed, but this is one of the few documented cleaning stations on the Costa Brava.
How long is the boat ride to Roca de Santa Anna?
Between 10 and 25 minutes from Tossa de Mar port, depending on the boat and sea conditions. The site is in the far dive sector, so it takes longer to reach than nearshore sites like Illa de Tossa or Mar Menuda.
Can I reach Roca de Santa Anna from shore?
Technically yes, from Mar Menuda beach via a 350-400 m surface swim, but this is only practical for technical divers carrying twinset or sidemount configurations. Single-tank divers would not have enough gas for both the approach and the dive. Boat access is the standard approach.
How does Roca de Santa Anna compare to Perduts?
Both are deep offshore sites in the same sector. Perduts is a sprawling rock maze at 15-32 m known for navigation difficulty and lobster habitat. Roca de Santa Anna is a compact pyramidal pinnacle at 25-36 m with the added draw of a sunfish cleaning station. Both require advanced certification and nitrox is recommended.
What temperature should I expect at depth?
The site sits at 25-36 m, below the summer thermocline. Even in July and August, bottom temperature drops to 16-20 C despite surface water at 24-26 C. A 5 mm wetsuit alone is borderline. In winter the column mixes to 13-15 C. Plan exposure protection for the depth, not the surface.

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