Bodega Submarina Del Mediterráneo is based in Castilla y León, Spain, and produces still wines and sparkling wine. The bodega works across multiple Spanish wine regions, drawing grapes from Castilla y León, Cataluña, and Galicia to create a range spanning red, white, and sparkling categories.

The bodega's defining characteristic is its use of underwater maturation—a process in which wines are aged submerged in the Mediterranean Sea rather than in traditional cellars. This unconventional method exposes wines to constant pressure, stable cool temperatures, and unique environmental conditions that differ fundamentally from conventional aging. The approach reflects an experimental philosophy toward winemaking rather than adherence to a single regional style.

The current range draws from established Spanish appellations and grape varieties. Their Cava Brut Reserva uses Xarel Lo and Macabeo—the primary varieties of the Penedès region. A Ribera del Duero wine showcases Tempranillo, the signature grape of that prestigious appellation known for structured reds. A Rías Baixas Albariño represents Galicia's acclaimed white wine tradition. This geographic diversity suggests the bodega sources quality fruit from recognized regions while applying its distinctive underwater maturation technique across different wine styles.

La Rioja is arguably Spain's most prestigious wine region, internationally renowned for its high-quality wines, particularly its refined reds. Located in northern Spain, the region benefits from a diverse climate that ranges from the cooler, wetter Atlantic influences in the west to the warmer, drier Mediterranean influences in the east, with the Ebro River playing a crucial role in moderating the climate. The Cantabrian Mountains also provide a barrier against harsh weather conditions from the north.

The region is best known for its robust, oak-aged red wines primarily made from the Tempranillo grape, which is the backbone of La Rioja's wine production. Other grapes such as Garnacha (Grenache), Graciano, and Mazuelo (Carignan) also play supporting roles in the blends. Rioja wines are classified into several categories based on their aging process: Rioja (the youngest), Crianza, Reserva, and Gran Reserva, with the latter two requiring several years of aging in oak barrels and bottles before release.

La Rioja is divided into three sub-regions: Rioja Alta, Rioja Alavesa, and Rioja Oriental (formerly known as Rioja Baja). Each area brings its unique characteristics to the wines. Rioja Alta is known for its old-world style wines with a balance of structure and acidity; Rioja Alavesa produces wines with a full-bodied and aromatic profile due to its limestone-rich soils; Rioja Oriental, being warmer, typically yields wines that are richer and more intensely colored.

The region's commitment to quality and tradition, combined with innovations in winemaking techniques, ensures that La Rioja continues to produce wines that are appreciated globally for their depth, complexity, and longevity. The picturesque landscapes of vine-covered hills and historic bodegas (wine cellars) also make La Rioja a popular destination for wine tourism.