Mare Santo is born in the green hills of Collio, where Mediterranean air meets Alpine wind.

This natural contrast shapes grapes with depth and character.

Our grapes grow in mineral-rich soil, shaped by climate and time.

They are hand-harvested with care, following established techniques and long-kept practices in our small, private winery — a place where quality always outranks quantity.

This is where Ribolla Gialla — known locally as Rebula — continues to thrive.

A grape rooted in Roman history, once praised by poets and emperors.

Even Boccaccio listed Ribolla among the reasons “God invented the sin of gluttony.”

Ribolla forms the heart of Mare Santo Cuvée Prestige, joined by Chardonnay to build tension, balance, and quiet detail in our sparkling wine.

Handcrafted, then Submerged

We don’t mass-produce.

Every grape is hand-picked, and only the finest reach the bottle.

Then comes the defining step: aging underwater in the Adriatic Sea, 20 meters deep, for 12–24 months.

“We return the wine to nature.
And nature gives back.”

This slow underwater aging gives Mare Santo a profile that stands apart in any sparkling wine.

Why the Sea?

Slovenian winemaker Igor Tomažič revived an old habit:

cooling bottles in streams. Forgotten bottles tasted better.

So he asked — what if the sea could age wine?

Since then, Mare Santo has matured underwater.

Sea currents keep it alive.

Minerals pass through the cork.

“It started as an idea. Now it’s a global patent.”
- Global patent no. P 201900046

From the Hills of Goriška Brda

Cuvée Prestige blends Rebula (structure)
and Chardonnay (softness).

Rosé uses Pinot Noir, hand-harvested
from select vineyard parcels.

Crafted by Nature

Mare Santo is shaped by more than hands —

It rests on contrasts:
Sun and salt. Wind and calm. Depth and stillness.

“We follow nature. And nature rewards us with something unforgettable.”