Ieshima isn't one island but an archipelago—Nishijima, Higashijima, Tanjima, and Otojima—connected by narrow bridges and inhabited by maybe three hundred people, mostly fishermen and their aging families. The ferry docks at Nishijima, where a handful of weathered houses cluster around a small harbor that smells of drying seaweed and diesel. You'll walk past shuttered shops and a shrine with a red torii gate before finding the footpaths that trace the coastline.
“These are working fishing islands first and destinations never, where beaches exist only because the geography allows them.”
Tropical island lagoon from above
The beaches here are more accident than design, small crescents of coarse sand and water-smoothed stones tucked between volcanic headlands. Some you can only reach at low tide, others require scrambling down rocky paths through groves of windswept pine and camphor trees. The water runs exceptionally clear this far from the mainland's river outflows, revealing beds of seagrass and schools of small fish that scatter at your approach. Jellyfish drift past in summer, translucent bells pulsing lazily.
You'll see almost no one beyond the occasional island resident tending gill nets or gathering shellfish. The beaches have no names on any map, no facilities, no lifeguards. Bring everything you need—water, food, sun protection—because the island's two vending machines are often empty and the small store keeps irregular hours. The last ferry back to Aioi departs at five, its horn echoing off the hills as you brush sand from your feet on the pier.