Puxadoiros Island, a 37-hectare patch of reclaimed salt pans and oyster beds in the middle of the Aveiro lagoon, is currently on the block in a public online auction. The base price sits at €750,000, but bidding opened lower, at €600,000 — and with a €615,000 offer already registered, it could go for less than a city-centre apartment in Lisbon.
The island isn't raw land. A group of investors bought it years ago, set up a company called Canal do Peixe, and poured over €1 million into restoration — more than half of that covered by EU funds. They kept the traditional salt production alive, discovered the island was rich in samphire (the salicornia sold in tonnes as a gourmet garnish), and eventually landed on oysters as the project's core. The venture was high-profile enough that Portugal's then agriculture minister, Assunção Cristas, paid a visit back in August 2014 to see the salt pan revival and oyster operation first-hand.
What's actually included is a working aquaculture estate: eight salt pans, nurseries, several buildings (the Island House, two barns and the Pinta House used for fish farming), operational licences tied to establishments 1229 Pinta and 1939 Canal do Peixe, roughly 600 iron oyster beds, around 2,000 mesh bags, and the kit to run it all — a recreational boat, tractor, trailer, cargo crane, levelling blade and the dock that gets you onto the island.
According to the auction house, the property suits aquaculture and bivalve production, but also nature tourism, food experiences, events and sustainability projects. That's the angle worth watching: the Aveiro lagoon — the ria, with its canals, moliceiro boats and salt heritage — is one of Portugal's most distinctive food and nature destinations, and a 37-hectare private island there is a rare listing. Bidding closes on Friday.
For a traveller, this is mostly a story about where the ria is heading: if a buyer leans into the nature-tourism and gastronomy potential flagged in the sale, the island could one day host visitors rather than just oysters. For the more entrepreneurial reader, it's a genuine opportunity — a licensed, equipped aquaculture operation with heritage salt pans attached, in a lagoon famed for its seafood, an hour south of Porto.
Either way, the sale is a reminder that Aveiro's lagoon remains one of Portugal's most under-the-radar corners: working salt pans, samphire marshes and oyster farms all within a short drive of a handsome, canal-laced city that most people still only pass through on the way between Porto and the south.
