A 3 ha linear SUDS wetland park harvesting rainwater across three city-centre streets for park maintenance, aquifer recharge, and drought-season reuse.
The Green axis Cristobal de la Moura features a sustainable urban drainage system that harvests rainwater from the city catchment and channels it into a 30,000 m² linear wetland park across three streets in Barcelona city centre. Collected water supports park maintenance, groundwater aquifer recharge, and local uses such as plant irrigation and street cleaning during drought seasons, reducing reliance on tap water. The showcase tests how an urban wetland park as a nature-based solution can enhance urban water management, foster water recreation during drought periods, and deliver biodiversity and wellbeing benefits by transforming grey infrastructure into green public space.
Socio-economic monitoring shows how people access, use, perceive, and engage with this showcase. It combines partner-uploaded social indicators with geo-based survey results where available.
Accessibility
Visitors
—
Sentiment
Survey responses
—
Well-being
—
Engagement
—
Percentage of the population within each travel-time band of wetlands. Updated 21 September 2026.
Within 5–10 min
2.0%
Within 15–30 min
37.9%
Within 45–60 min
10.2%
Within 90–120 min
11.5%
Positive, neutral and negative opinions about wetlands. September 2025 – September 2026. Based on the external social media platforms.
Positive
66.7%
Neutral
0.0%
Negative
33.3%
Per assessment point: anonymous aggregated mean scores for survey perception, physical well-being (S2B), and mental well-being (S2C). Individual responses are never shown.
Assessment points — Perception
| Code | Indicator | What it measures | Source | Frequency | Latest value | Status |
|---|---|---|---|---|---|---|
| S1A | Time accessibility | Percentage of the population within 5–10, 15–30, 45–60 and 90–120 minutes' travel time of wetlands | Accessibility analysis | 21 September 2026 | 5–10 min: 2.0% 15–30 min: 37.9% 45–60 min: 10.2% 90–120 min: 11.5% | Published |
| S1B | Wetland visitors | Number of visitors per year | Partner upload | Annual | — | Awaiting data |
| S1C | Users accessibility | Potential users per km² | Partner upload / External Data Analysis | Annual | — | Awaiting data |
| S2A | Sentiment Index | Percentage of positive, neutral and negative opinions about wetlands | Based on the external social media platforms | September 2025 – September 2026 | Positive 66.7% Neutral 0.0% Negative 33.3% | Published |
| S2B | Physical well-being survey | Self-reported physical well-being | Geo-based survey | Survey-based | — | Survey underway |
| S2C | Mental well-being survey | Self-reported mental well-being | Geo-based survey | Survey-based | — | Survey underway |
| S3A | Public involvement | Participation in wetland-related activities | Partner upload | Annual | — | Awaiting data |
| S3B | Virtual engagement | Online or digital engagement level | Partner upload | Annual | — | Awaiting data |
| S3C | Social contribution to science | Number or percentage of public contributions | Partner upload | Annual | — | Awaiting data |
Gallery
Images help communicate site context, monitoring activities, and nature-based solution interventions.
Linear wetland park along the green axis
Rainwater harvesting and retention features
Urban green corridor in Barcelona
Public green space along Cristobal de la Moura
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