Ispaster is a town and municipality located in the province of Biscay, in the autonomous community of Basque Country, northern Spain.

The first, located a few kilometers away from the sea, a small group in Mesolithic dedicated to important activity settled as fishing.

This settlement, formed by a population of men who fished Mollusca, was founded around 3500 BCE, according to the investigations made by Apellaniz in 1973.

The first signs of human occupation are in diverse cavities where a small group lived on fishermen-recolectores during the Mesolithic.

At the beginning of the early modern period, a constructive explosion takes place that turns the municipality in Biscay's best equipped one in gothic-Renaissance popular architecture.