Digital Artwork

Medusa Valley

Immersive Interactive light and sound Installation — Designed by Yiannis Kranidiotis & ADAF team, made with the local community

Immersive Interactive light and sound Installation — Designed by Yiannis Kranidiotis & ADAF team, made with the local community

Immersive Interactive light and sound Installation — Designed by Yiannis Kranidiotis & ADAF team, made with the local community

Light Installation

Completed

Format

01

Light Installation

Status

02

Completed

Country

03

Greece

Partner

04

ADAF — Athens Digital Arts Festival

About

Immersive Interactive light and sound Installation — Designed by Yiannis Kranidiotis & ADAF team, made with the local community

Immersive Interactive light and sound Installation — Designed by Yiannis Kranidiotis & ADAF team, made with the local community

Immersive Interactive light and sound Installation — Designed by Yiannis Kranidiotis & ADAF team, made with the local community

Medusa Valley is an immersive interactive light and sound installation that addresses plastic pollution and ocean warming through the fictional figure of the PETE Medusa.

Constructed from recycled plastic bottles, optical fibers, LEDs, and custom electronics, the installation transforms waste into a semi-living organism that reacts to human presence through light pulses and sound. These speculative jellyfish—hybrids of synthetic material and biological imagination—symbolize the visible consequences of environmental disruption, from rising sea temperatures to ecosystem imbalance.

The work is activated through audience participation: each element of the installation is created during workshops, allowing visitors to directly contribute to the artwork and become part of its evolving ecosystem. This collective process reinforces the project’s message, turning spectators into active agents within a shared reflection on climate change and human impact on marine environments.

Medusa Valley functions both as an immersive experience and as a call to action, inviting audiences to engage emotionally and critically with the ecological transformations shaping our present.

Concept

Storyline: Following the excessive pollution of the oceans with plastics, and the overheating of the water due to climate change, a new species of mutant jellyfish has emerged—the PETE Medusa. Named after the PETE plastic bottle that forms its torso, this fictional organism is a hybrid of synthetic waste and biological adaptation. Scientists have observed that many plastic bottles drifting in the ocean have developed plastic tentacles, capable of detecting the presence of living organisms. In response to human proximity, these tentacles emit luminous pulses—an eerie form of communication between artificial life and its creators. Even more astonishingly, some of these mutant jellyfish have evolved a membrane resembling a primitive speaker at their top, activated by sensors within the tentacles. When humans approach, these speakers produce an unsettling sound, reminiscent of a Geiger counter—a device used to measure radiation. This auditory signal raises an alarming question: Are humans a greater threat to the planet than nuclear catastrophe? With this transmutation, the PETE medusas have jumped out of the water and begun to swarm on land, to protest and to warn us about climate change, about the transformations it imposes on oceanic biodiversity, and to call us to action. An eco educative piece: Medusa Valley is both a speculative fiction and a stark critique of oceanic change, especially as it manifests along the Mediterranean coast. Jellyfish are a powerful symbol of what is happening beneath the surface: rising temperatures, plastic pollution, and the collapse of natural balances. They are perfect indicators of these unseen transformations, forcing us to take notice. Up until 15 years ago, jellyfish swarms along the Mediterranean coastline occurred roughly every decade. Due to climate change, plastic waste, and the extinction of natural predators, their population has since grown abnormally. In the past five years, they have become year-round dwellers, constantly drawing attention with their stinging presence. Constructed from common PETE plastic bottles, plastic optical fibers, LEDs, and small speakers, the installation embodies a paradoxical transformation—waste repurposed into an interactive, semi-living entity. This ironic evolution acts as a metaphor for nature's forced adaptation to human environmental impact. The sculpture's reactive sound and light elements symbolize a potential future in which nature develops mechanisms to respond—perhaps even resist—the relentless damage inflicted upon it. Made collectively: Beyond its symbolic presence, the installation becomes truly alive through the participation of the audience. Each jellyfish of Medusa Valley is created during workshops, inviting people to take an active role in shaping the artwork itself. In this way, the public does not simply observe but becomes part of the ecosystem of the installation, amplifying its message. This collaborative act fosters deeper reflection on the urgent problem of oceanic change, while also encouraging participants to imagine pathways toward its potential solution. Medusa Valley is not only an artwork to be seen, but a shared call to action. An underwater experience on land. A reminder that our collective response to today's crises may determine the future of life beyond and above water.

Year

2025

Year

2025

Format

Interactive light and sound installation

Format

Interactive light and sound installation

Status

Completed

Disciplines

New media, interactive installation, light, sound, participatory art

Disciplines

New media, interactive installation, light, sound, participatory art

Touring cities

Athens, Greece — 3–7 April 2025 Zagreb, Croatia — 24–27 March 2026 (LAB852, installation & workshop) Bonțida (Bánffy Castle), Romania — 17 May 2026 Prague, Czech Republic — 15–18 October 2026 (Signal Festival, workshop)

Touring cities

Athens, Greece — 3–7 April 2025 Zagreb, Croatia — 24–27 March 2026 (LAB852, installation & workshop) Bonțida (Bánffy Castle), Romania — 17 May 2026 Prague, Czech Republic — 15–18 October 2026 (Signal Festival, workshop)

Themes

Plastic pollution

ocean warming

climate change

marine biodiversity

ecosystem collapse

waste

nature's adaptation

participation

Country

Greece

Country

Greece

Space

• Room size 10m x 10m

• room height minimum 5m

• lighting requires total blackout (no external light leakage). A wooden grid suspended from the ceiling at 4m above the floor

• each Medusa unit hangs from the grid on transparent fishing lines. Required ceiling rigging points for the wooden grid

Documentation

Tech rider

Promoted by

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Inspired by debates

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28.01.2025 — Athens Digital Arts Festival

1st round

Athens

Greece

28.01.2025 — Athens Digital Arts Festival

This debate successfully bridged scientific knowledge and artistic practice. A keynote presentation, public roundtable and artistic statements collectively explored the fragility of the Mediterranean ecosystem, particularly in relation to marine plastic pollution. The broad and interdisciplinary participation generated momentum for ADAF’s co-creation phase and highlighted the potential of artistic work as a driver of environmental literacy. Held at Serafeio, the event brought together artists, scientists, educators, students and citizens, building a shared understanding of marine environmental issues while enabling participants to contribute to the artistic interpretation (the audience-built Medusa Valley installation) through co-creative practices.

The City of Athens took part as local policy expert through Georgios Apostolopoulos, Deputy Mayor for the Environment and Green Spaces.

25.09.2025 — Athens Digital Arts Festival

2nd round

Athens

Greece

25.09.2025 — Athens Digital Arts Festival

The second Local Debate took place on 25 September 2025 (18:00–20:17) at the Kypseli Municipal Market in Athens, as part of the all-day event “A Sea in the City”, which also included an exhibition of Medusa Valley, screenings, interactive installations, a VR experience, workshops for children and adults and a live music show. Around 100 people attended (75 signed the attendance sheet).

Titled “Biodiversity in the Sea: A Dialogue on Digital Art, Climate Change and Natural Heritage”, the panel was moderated by journalist Despoina Papageorgiou (Popaganda) and brought together scientists, policy experts, artists and cultural operators: Konstantinos Tsoukalas (WWF Greece), Christina Economou (Aenaos Thalassa / Thalassa Foundation), Prof. Drosos Koutsoubas (University of the Aegean), Soultana Zervoudaki (HCMR), artists Robertina Šebjanič, Yiannis Kranidiotis and Lampros Pigounis, and Konstantinos Trakosas (Creative Europe Desk Greece). After the presentation of Medusa Valley by Elli-Anna Peristeraki, the speakers addressed the loss of marine biodiversity, ocean warming, overfishing, plastic and underwater noise pollution, the jellyfish as a symbol of climatic imbalance, art as a “translator” of scientific data, the protection of marine parks, and environmental education and citizen science.

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