An ancient farm system, built by hand on top of water, hidden inside one of the largest cities on earth and almost nobody knows it exists.

The chinampas of Xochimilco are human-made islands, constructed over centuries in the lakes that Mexico City was built on. At their peak they fed an entire civilisation. Today, more than 60% are abandoned, the city is slowly swallowing the edges, and once a chinampero stops farming, another one rarely takes their place. Pablo Usobiaga from Arca Tierra is trying to reverse that not by fighting the city, but by bringing it in through a dining experience.

This is part one of three episodes series recorded around Arca Tierra: Pablo Usobiaga built a restaurant — Baldío — around one idea: source everything from peasant farmers, waste nothing, and use fermentation to turn what would have been bin bags into the best things on the menu. It just became the first restaurant in Mexico City to earn a Green Michelin star. This conversation is where it starts: on the chinampas, where the food comes from. Parts two and three go deeper into the fermentation lab with Chris, and into the kitchen with Daniel (episodes coming out in the next weeks).