Pedra da Greta
Reel and buoy required
Excellent for photography
Use a torch
Water craft traffic
This is the primitive chain of dunes, a beach from the end of the last ice age, around 8.000 years old.
This outcrop which appears "rocky" (in fact it is comprised of compacted sand) extends approximately 1 nautical mile, 20 to 40 meters in width and 1 to 2.5 meters in height, lying parallel to the coast.
The "rock" has a pressed down labyrinth structure, formed by large blocks with incredible forms and numerous fissures. Distinct zones (Lagosteira, Âncoras, Cabeço dos Robalos) can be identified in relation to the bottom profile.
The shape of the rock enables a large variety of benthic invertebrates to attach themselves to it, and there is a population of gorgonians that visually dominate the environment of the rock.
These are very concentrated in some zones, with various sizes and colours (yellows, reds, blues, whites and pinks) and help make this dive one of the most interesting in terms of biodiversity and colour.
All the groups of animals can be seen in this zone. Sponges and anemones of various types, forms and colours cover the blocks of stone, turning them various colours.
The numerous indentations make excellent shelters for various species of fish. It is common to see different species of large bream, sea bass, and occasionally anchovies and blue whiting.
Other attractions: Damselfish, morays, pout and grouper. For the more observers the wide variety of nudibranch, ranging in colour and size, are another feature of interest.