The boat houses of Es Caló.

A village below La Mola

Es Caló de Sant Agustí sits on the north coast of Formentera, at the foot of the La Mola plateau, where a shelf of low rock meets shallow water. The village is small: a cluster of houses, a church, a short waterfront and a few streets that end at the sea. It grew around the fishing that the rock made possible rather than around a beach, and the boat houses are the oldest surviving part of that arrangement.

The coast here is not sand but a shelf of hardened rock, worn into pools and channels by the water. That shelf gave fishermen something a sandy beach could not: a firm surface to drag a boat onto, and a natural wall to build against. The result is a line of doors at water level, each opening into a store cut back into the stone, with a ramp angled down to the sea and a strip of flat rock in front of it for mending nets.

What a boat house is

A boat house, an escar in Catalan, is a store for the tools of a working boat: oars, nets, lines, pots, the engine in winter, rope and fuel. At Es Caló they are cut into the rock rather than standing free, so the stone itself does the work of walls and roof. Each has a wooden door, most of them painted and repainted, and a channel or ramp of stone that leads to the water.

Their size tells you what they were for. These are not houses in the domestic sense: nobody lived in them, and most are too low to stand up in at the back. They are workshops and sheds, sized to a small boat and a short-handed crew. Families passed them down, and door, ramp and the water in front of it were understood as one piece of working equipment rather than three separate things. The row lets you read that arrangement in sequence, without a panel to explain it.

• Stone wallsCut into the rock, so the building is partly geology and partly masonry.
• Wooden doorsPainted boards facing the sea, repaired and repainted over the years.
• The rampA stone channel or slope that lets a boat be hauled clear of the water.
• Working gearNets, lines, oars and engines kept out of sun and salt.

The slipways and the weather

There is no harbour at Es Caló. That single fact explains the slipways. A boat could not be left afloat through a change of weather, so it was pulled out after every trip and hauled up the ramp with ropes and however many pairs of hands were available. The shallow grooves worn in the rock by that repeated work are still visible in places, and they are the most honest record of the fishing here.

The rock shelf also decides when a boat can go out. In calm weather the water at the foot of the ramps is shallow and clear and the swell is small; in a northerly, the same water becomes difficult and the boats stay where they are. Fishermen read that coast daily, and the working day followed the sea rather than the clock. What looks like a row of painted doors is really a timetable of wind and weather set in stone.

A living from the sea

Formentera's soil is thin and the wind is steady, so farming alone never fed the island. Fishing ran alongside it: small boats working close to home, a mixed catch landed on the same rocks, and a market that was partly local and partly the port at La Savina. The sea was not a leisure resource but the second half of the household economy, and the boat houses were where that half was maintained.

The catch was eaten fresh when it could be and preserved when it could not. Drying and salting were ordinary household skills rather than specialities, and a fish that came out of the boat in the morning could be hanging under a roof by the evening. That habit left marks on the island's food and on its language, and it began at doors like the ones at Es Caló, in the open air, close to the water.

The sea was not a leisure resource but the second half of the household economy.

The meadow behind the catch

The shallow water in front of the boat houses is part of the same system that fills the nets. Posidonia oceanica, the seagrass that grows in meadows from the shallows down to about 30-40 m, shelters young fish and holds the sand in place. Clearer water lets more light through and makes for a healthier meadow. Fishing and clean water are not separate subjects on Formentera; in the end they are the same subject.

That is why anchoring is regulated. A Balearic decree governs anchoring over the meadows, and mooring buoys are installed in some bays in summer. A boat that drops an anchor into posidonia can tear out a patch that took decades to grow. The rule is not aimed at sailors as a group; it is aimed at one specific, slow plant that happens to sit under the most popular water on the island.

What changed on the waterfront

The twentieth century brought visitors, and with them a different use for the waterfront. Fishing did not stop, but it shrank: fewer boats worked from the north coast, and some boat houses changed hands. Today many of them hold sunshades, masks and chairs rather than nets. A few are still used by families who fish, a few stand empty and weathering, and the mix is the most accurate thing about the place.

The change is seasonal as well as economic. Outside the main season, roughly from November to April, much of the village closes down, the remaining boats are pulled up onto the ramps, and the coast returns to something closer to what the doors were built for. Sant Francesc Xavier stays open all year, so the island does not empty; but Es Caló in February is a row of shut doors and weather, and that is the honest view of it.

• Fewer boatsThe working fleet from the north coast is smaller than it was two generations ago.
• New cargoSunshades, masks and beach chairs now sit behind some of the doors.
• Family ownersMany boat houses stay within the families that built or bought them.
• Winter shutdownSeasonal businesses close roughly from November to April; the slipways do not.

Seeing them without intruding

The boat houses are private property, and that is the first thing to understand. Most are still owned, several by the families who work from them. Walk the waterfront, look at the ramps and the doors, and stop at the water's edge. Climbing onto a ramp, sitting in a doorway or opening a door for a photograph is not a small thing: it is someone's store, and often someone's livelihood.

The best time is early morning, when the light comes low across the water and the rock is at its clearest, or late in the day when the doors are in shadow. There is no entrance, no ticket and no queue. Come on foot or by bike where you can. The island's green routes are signposted for exactly this kind of slow movement, and the waterfront itself is short enough to walk in stages, with the sea on one side and the village on the other.

• Stay lowKeep to the path and the flat rock, and do not climb on the ramps.
• Ask firstIf a door is open and someone is working, ask before photographing.
• Watch the sunThere is little shade on the rock around midday in summer.
• Go earlyMorning light is clearer and there are fewer people on the waterfront.

Other traces of the fishing life

Es Caló is the clearest example, but it is not the only one. La Savina grew as the port, and the working side of the island still passes through it. The lagoons at Estany Pudent and Estany des Peix were fished and worked long before they were watched by birdwatchers, and the small coves around the coast keep the odd ramp, wall or store cut into the rock, often with no sign at all to point them out.

Further out, Cap de Barbaria and La Mola mark the island's edges with lighthouses, and the old paths between them were walked for work rather than for views. Walking any of these routes with the boat houses in mind changes what you notice: a groove in flat rock, a rusted ring, a door facing the wrong way. The island's history is mostly small in scale and mostly at ground level.