A Natural Full-Sand Swimming Lagoon, Explained

A full-sand lagoon is a private freshwater beach: a 100% sand basin you enter on a gentle slope, with no steps, no ladders, and no concrete underfoot. The sand is not a decorative layer over concrete, it is the actual floor of the basin, and the water stays clear through freshwater UV disinfection and a closed-loop filtration system, with no chemicals added. It is not a pool, and it is not a pond. It is a real freshwater beach, built on your own property by CLAIR LAGON®.

Three Models, Scaled to Your Land

Our lagoons come in three sizes, from an intimate garden cove to a generous space built for gathering. Find the one that fits your property and how you want to live around the water.

The Anse model, an intimate cove-scale fine-sand lagoon integrated into a private garden

Anse

The intimate scale. A private cove tucked into your garden, sized for a family who wants their own quiet stretch of water.

From roughly 30 m²+

Note the Anse on my consultation
The Crique model, a mid-scale fine-sand lagoon inlet suited to family gatherings

Crique

The mid scale. Room enough for family and friends to gather around the water, with a longer shoreline to design against.

From roughly 80 m²+

Note the Crique on my consultation
The Calanque model, the largest fine-sand lagoon scale, suited to expansive properties and collective useCollective scale

Calanque

The largest of our models. Generous scale for expansive properties, and at collective scale, our lagoon for shared and professional use.

From roughly 120 m²+

Note the Calanque on my consultationSee the Calanque for collective and commercial use →
A gentle beach-entry slope leading into turquoise lagoon water, warm sand underfoot, safe wade-in for a young child

What It Feels Like to Own One

Warm sand shifts underfoot as you wade in. There is no ledge to find with your foot, no chemical sting in your eyes, just clear freshwater and a slope that lets you walk in at your own pace, the way a real beach does.

The safest way for a child to enter water

There are no steps and no ladders. Your lagoon opens with a gentle beach slope, so a young child wades in the way they would at a real beach, with no ledge and no sudden drop underfoot.

Real fine sand underfoot

This is a 100% sand basin, not a concrete floor with sand dressed on top. Every step you take across the bottom of your lagoon is on real, fine sand.

Freshwater your kids can swim in all day

No chlorine, no red eyes, no chemical smell on your skin or your swimsuit. The water is kept clear by UV disinfection and a closed loop, not by additives.

Less to keep up than a chlorinated pool

Without chemical dosing to manage, your lagoon asks less of you week to week than a traditional pool. See how the upkeep works on our How It’s Built page.

Talk through which model fits

How It Stays Clear, Without Chemicals

Freshwater moves through a closed loop and past a UV disinfection stage, so your 100% sand basin stays clear without chemicals and asks less of you than a chlorinated pool.

Freshwater
UV disinfection
Closed-loop
100% sand basin
See how it’s built and maintained

Make It Yours

You choose the sand tone, the rock, and how the planting frames the water. The lagoon is yours, down to the shoreline.

A garden-integrated lagoon showing a warm sand tone choice, lush planting framing the waterSand color

Choose the tone of your beach, from pale and bright to warm and golden, so the shoreline reads the way you want it to against your home.

A Mediterranean-style lagoon with natural rock selection along the shoreline in warm sunlightRock selection

Natural rock sets the character of your cove, from soft boulders tucked into the planting to a bolder Mediterranean edge along the water.

A floral, garden-planted lagoon shoreline showing a lush planting style choicePlanting style

The planting around your lagoon can be lush and garden-fed, dry and Mediterranean, or kept minimal and quiet. You decide how the water is framed.

Not a Pool. Not a Pond.

Not a pool with sand added

A concrete pool with a sand ledge is still a concrete pool. Your lagoon is a 100% fine-sand basin with no concrete floor underneath it, from the shoreline to the deepest point.

Not a pond that needs garden upkeep

A planted pond relies on its own ecosystem to stay balanced. Your lagoon is freshwater, kept clear by UV disinfection and a closed-loop system, so it swims clean without that upkeep.

What it actually is: a 100% fine-sand basin you walk into on a gentle beach slope, kept clear by UV disinfection and a closed loop, a real freshwater beach on your own property.

You’ve Seen the Lagoon. Let’s Design Yours.

CLAIR LAGON has built full-sand lagoons for clients around the world. Tell us about your property, and we will help you choose the model and finishes that fit it.