Reefwander
Sesimbra's whitewashed town below a rocky Arrábida headland, seen across the bay from a seafront pier.

Sesimbra & the Arrábida · Portugal · Reef

Pedra da Milu

Gorgonian carpet at 28–30 m where sunfish come to be cleaned

Area photo: YukioSanjo · CC BY-SA 4.0

A rock whose bottom carries gorgonians thickly enough to read as a carpet, dived from 28–30 m. Seabream and red bream hold over it, but the reason the site has a name of its own is the sunfish: they come here to be cleaned, and on a lucky day that is what you go home with.

Where it is and how deep

Depth profile of Pedra da Milu: typical dive 28–30 m (92–100 ft) 18 m · Open Water30 m · Advanced40 m · Recreational limit28 m30 mtypical dive
Depths on a shared scale to 40 m (130 ft); dashed lines mark common certification limits.

38.4068° N, 9.1915° WPublished position for this site.

The dive

The dive here usually begins at 28–30 m, and the first thing you see is the gorgonian cover: a large variety of them, close enough together that the seabed reads as a coloured carpet rather than as individual fans. On a coast whose seabed is rock and not coral, this is as close as Sesimbra gets to a garden.

Seabream and red bream work the water over the gorgonians, but the thing worth hanging on for is the sunfish. They come to this spot to be cleaned, so the encounter is a matter of being in the right place at the right time rather than of searching — hold position and let one come in rather than going after it. At 28–30 m the clock is short, and the ascent has to be planned into the dive rather than bolted on at the end.

Marine life and season

  • Mola mola
Month-by-month season rating for Pedra da Milu
JanFebMarAprMayJunJulAugSepOctNovDec
FairFairFairFairGoodGoodGoodPrimePrimePrimeGoodFair

Season follows Sesimbra & the Arrábida: Aug–Oct is the warmest window; sheltered bay sites are diveable all year, but cape-facing sites take Atlantic swell in any month.

Sources

  1. Pedra da Milu — Scubago — Scubago / SSI MyDiveGuide

More dive sites in Sesimbra & the Arrábida

A disused submarine cable over rock at about 20 m

to 20 mintermediate

Easy 13 m rock where octopus, cuttlefish and squid lay eggs

to 13 mintermediate

Tile-carrying wreck at 55–65 m, expert divers only

55–65 madvanced

Pinnacle

Surface-breaking rock at 15 m with nudibranchs in the cuts

to 15 mintermediate

Rock rising from 15 m to the surface near Cabo Espichel

to 15 mintermediate

Low rock with lost anchors on the bottom at 15–18 m

15–18 mintermediate

Cape walls at 12–15 m strewn with River Gurara debris

12–15 mintermediate

Similar dives elsewhere

Reef

Ondartxo

San Sebastián & Getaria · Spain

A broken slab of boulders to zigzag through, with a wall to 32 m

to 32 madvanced

Reef

Bajo de las Gorgonias

San Sebastián & Getaria · Spain

Large gorgonians over a rocky south face full of crustaceans

to 30 mintermediate

Reef

Las Grietas

San Sebastián & Getaria · Spain

Merchant anchors among east-west slabs off Mount Ulia

14–30 mintermediate

Reef

Los Dedos

La Graciosa & the Chinijo Archipelago · Spain

Raw volcanic seabed in its purest form

15–26 mintermediate