The Jardín del Turia is Valencia's most unlikely park. In 1957, a catastrophic flood left parts of the city three metres underwater, killed 81 people, and washed away at least one bridge. The Turia River, which had sustained the city since the Romans founded it in 138 BC, had become a danger. Engineers diverted it south.

The dried riverbed was nearly turned into a highway. Locals pushed back. What they got instead was nine kilometres of green space threading through the city: gardens, playgrounds, cycling paths, and running tracks where a river once ran.

Today it's Valencia's living room. Mornings and evenings bring joggers, cyclists, and families. In summer, water sprinklers become paddling pools. VoiceMap's tours use the Jardín del Turia to trace this long relationship with water, explaining the eight irrigation ditches still fed by the river and the ancient tribunal that has governed them for a thousand years.