Big Blue Diving
Big Blue Diving, Palmanova: SSI and PADI center founded 1997, operating year-round from two RIBs across SW Mallorca's El Toro marine reserve and surrounding sites.
Also known as: Cala Fornells (Peguera), Cala Fornells cueva y tunel
A sheltered shore cove at Peguera with calm 5-20m diving and an S-shaped swim-through tunnel leading to a surfaceable air-pocket cave.
Last updated June 2026
Enter from the beach at Cala Fornells and the dive settles into an easy reef tour: clear, turquoise water over coarse sand and rock, with the south-facing cove wall to work at 5-20m. Moray eels sit in the crevices along the wall; seabream, wrasse and octopus move over the sand and rock below; the occasional barracuda crosses the midwater above. The standard cove circuit is unhurried and accessible. The S-shaped tunnel is optional — and it changes the nature of the dive entirely.
The tunnel runs about 10-15m through the rock. At the exit, a left turn leads into a small cave where divers can break the surface inside an air pocket. The navigation matters here: the turn is not intuitive, and pushing to the very back of the cave risks snagging a tank in the confined space. Trim and controlled buoyancy through the tunnel walls keep the passage clean. A torch is essential for the cave section. Divers who skip the tunnel keep the dive a relaxed, beginner-friendly reef tour. Those who take it add a genuine overhead experience to what would otherwise be an ordinary cove.
Cala Fornells is a shore dive with two characters in the same water. The open cove is as accessible and calm as any beach entry on the SW Mallorca coast — suitable for snorkellers, first-time divers and practice sessions, with nothing demanding about the approach or the conditions. Behind the south wall, the same cove holds an S-shaped tunnel that leads to a cave with its own air pocket. That combination of easy open-water reef and a distinctive overhead feature in one shore-entry site is uncommon on this coast. Most of the equivalent sites here are boat-only reserve dives. Cala Fornells requires neither a boat nor a reserve permit, and the cave is there for divers who want it without committing the whole group to it.
No reserve permit is required for this cove — it operates under general Spanish diving law. A torch is essential for the tunnel and cave; do not attempt the overhead section without one. The turn from the tunnel exit into the cave is not obvious on a first visit: turn left at the end of the tunnel, find the cave opening, and do not push to the very back. Water shoes help on the mixed sand and stone beach entry. Best conditions are calm, wind-free days for the 20-25m visibility the cove can produce; occasional current can reduce clarity. The dive is accessible year-round, though June-September gives the warmest water for the shallow cove profile.
What makes this dive site stand out.
A 10-15m swim-through leads to a small cave where divers can surface inside.
Walk-in from Peguera beach under general law; no marine reserve fee required.
Sheltered from most conditions; visibility typically 20-25m on calm, wind-free days.
Open cove for beginners and snorkellers; the overhead section for intermediate divers.
39.5300°N, 2.4480°E
Summary
Easy in the open cove; moderate for the tunnel-and-cave route (overhead environment, navigation attention required)
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.
Big Blue Diving, Palmanova: SSI and PADI center founded 1997, operating year-round from two RIBs across SW Mallorca's El Toro marine reserve and surrounding sites.

PADI dive center in Camp de Mar bay, seasonal May-Oct; Polish instructor team serving European package guests through TUI, ITAKA, and direct bookings.

PADI 5-Star IDC centre in Santa Ponsa since 1997, diving the Illes del Ponent marine reserve with day trips to Dragonera and Cabrera.

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Not confirmed inside any marine reserve; general Spanish diving law applies. Western reserve boundary (punta de Cala Figuera) is nearby — verify against caib zonification if diving the cove's eastern edge.
Yes, in the open cove. The water is calm, clear and shallow (5-20m), accessible directly from the beach, and forgiving for newly certified divers and snorkellers. The S-shaped tunnel to the cave is a separate, overhead section that requires attention and experience — it is not a first-dive feature.
No. Cala Fornells is not confirmed inside any Balearic marine reserve and operates under general Spanish diving law. No paid authorisation is required. The western boundary of the RM Ponent reserve is nearby; the cove itself has no reserve designation.
The S-shaped tunnel is about 10-15m long. At the exit, a left turn leads to a small cave where divers can surface inside an air pocket. The key is the left turn — going straight or pushing to the very back of the cave risks a tank snag in the confined space. A torch is essential. First-timers should go with a guide who knows the exit.
Yes. The cove is accessible directly from the Peguera beach — walk down, enter from the shore and you are diving. There is free parking and bus access to the area. Water shoes help on the mixed sand and stone entry. A short boat ride from Santa Ponsa is also possible.
Moray eels are the site's most reliable encounter, tucked into the crevices of the south-facing cove wall. Octopus, scorpionfish, seabream, wrasse and the occasional barracuda fill out the reef community. Shrimps and crabs appear in the tunnel itself. Mediterranean cove fauna, not a species-diversity destination.
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