Dive-site story
Caloura Arches sits along the sheltered southern coastline of São Miguel, offering a network of volcanic arches, overhangs, and swim-throughs formed by ancient basalt lava flows. Ambient sunlight filters through cracks in the overhead stone, illuminating sandy patches between the volcanic rock formations. The topography provides refuge for Atlantic and subtropical marine species resting under ledges or hunting across the seafloor.
Interconnected volcanic basalt arches and swim-throughs
Frequent encounters with resident dusky groupers resting inside crevices
Clear natural light beams penetrating rock fractures onto the seabed
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
Summer and early autumn bring the warmest water and most settled sea conditions to the Azores archipelago.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dusky GrouperEpinephelus marginatus | Common | ||||||||||||
| Black MorayMuraena augusti | Common | ||||||||||||
| Ornate WrasseThalassoma pavo | Common | ||||||||||||
| Mediterranean ParrotfishSparisoma cretense | Common | ||||||||||||
| Common OctopusOctopus vulgaris | Common | ||||||||||||
| Common StingrayDasyatis pastinaca | Seasonal |
Marine forecast
