Before dawn most mornings, when the harbour bars are still shuttered and the tourist ferries are hours away, the fishing boats of Aegina are already motoring back in. The fishermen who work this stretch of the Saronic Gulf run small vessels, rarely more than eight or ten metres long, using nets and longlines set the previous evening. By five o'clock they are unloading onto the quay, sorting the night's catch by hand into plastic crates: red mullet, sea bream, octopus, grouper, and whatever else the water offered up.

The fish market that forms informally near the port each morning is not a tourist attraction — it is a working exchange where restaurant owners argue price per kilo and housewives inspect gills with practised suspicion. Visitors who arrive early enough are usually welcome to watch, and some of the fishermen speak enough English to explain what they have caught and how they caught it. The smell is sharp and clean, the conversation loud, and the whole thing is finished and gone well before the first ferry from Piraeus docks.

Octopus is the catch most associated with Aegina, and you will see it hung to dry on lines along the waterfront throughout the summer — a sight that is genuinely traditional rather than staged for cameras. The drying process, lasting a day or two in the sun and breeze, firms the flesh and concentrates the flavour before the octopus is grilled over charcoal. Every taverna on the island serves it, but the ones closest to the water, where the owner likely knows the fisherman personally, tend to do it best.

The fishing community here is tight-knit and ageing. Younger islanders are less inclined to take on the long hours and uncertain income of the sea, which means the fleet has shrunk over the past few decades. That makes what remains feel all the more worth noticing. If you sit long enough at a harbour cafe in the early morning, you will come to understand that this daily rhythm — boats out, boats in, fish sold, sea rested — is as much a part of Aegina as any ancient temple.