GUACALILLO, COSTA RICA — In a landmark initiative for waste management in Playa Guacalillo, located in the Garabito canton of Puntarenas, the MareBlu Foundation has officially inaugurated Costa Rica’s first Beach Cleaning and Volunteer Center.
This modern facility is designed not only to halt the accumulation of plastic pollution in the Pacific Ocean, but also to educate, reforest, and reactivate the local economy through active conservation.
“For MareBlu, it is crucial not to send anything to landfills, but rather to find circular solutions,” highlighted Paula Sánchez, volunteer coordinator for the foundation
The Tárcoles River and the Plastic Crisis
The location of this new facility addresses one of the most critical environmental emergencies along the Costa Rican coastline. Playa Guacalillo sits directly at the mouth of the Tárcoles River, recognized as one of the most polluted river basins in Central America.
This river carries a massive volume of solid and plastic waste generated by industrial and urban activities across the Central Valley straight to the Pacific shore.
According to data from the Ministry of Health, Costa Rica generates more than 4,000 tons of waste daily, of which only 13% undergoes recycling processes.
Furthermore, the United Nations Development Programme (UNDP) estimates that in 2022, the country generated 229,612 tons of household plastic waste. Of that amount, an estimated 255 tons ended up in aquatic environments, while approximately 37,000 tons severely impacted terrestrial ecosystems.
Circular Economy: Turning “Useless” Waste into Resources
MareBlu’s strategy breaks away from the traditional model of merely collecting trash from the sand and hauling it to landfills. The new center operates under a strict circular economy model, where recovered waste is converted into valuable raw materials for various productive industries:
- Recyclable Materials: Plastics and metals are collected, sorted, and re-entered into the market to give them a second life.
- Hard-to-Treat Waste: Non-recyclable items such as used tires and discarded textiles are converted into additives for asphalt and construction materials.
- Organic Waste: All organic matter gathered during beach cleanups is composted locally to support coastal soil restoration.
“Our focus is to provide full traceability to the waste reaching the coast. We remove it from the environment and utilize it as raw material to generate employment in local communities. Nature wins, families win, and Costa Rica wins,” stated Gerónimo Ciuti, founder and director of MareBlu.
Facility Features and Community Impact
The new operations hub includes multipurpose infrastructure tailored for long-term socio-environmental impact:
- Training Areas: Spaces dedicated to environmental education workshops.
- Volunteer Amenities: Showers and restrooms for national and international volunteers.
- Native Plant Nursery: A dedicated nursery focused on reforesting coastal habitats.
- Sea Turtle Protection: A specialized nesting area designed to protect sea turtle eggs.
- Interactive Plastic Museum: An educational exhibit designed to raise environmental awareness among visiting students, tourists, and volunteers.
Beyond environmental benefits, the center directly employs a dozen local families, laying a firm foundation for sustainable tourism in Puntarenas.
“We had to view waste as a raw material capable of generating jobs. One of our starting initiatives is the washing, sorting, and packaging of this waste for downstream processing,” added Ciuti.
With this new center at Guacalillo Beach, MareBlu scales its daily operational capacity while offering a replicable management model for vulnerable coastal ecosystems throughout Central America.
