Natural Pools That Blend Sustainability, Beauty, and Wellness
A natural pool, also known as a natural swimming pool or “biopool,” is a chemical-free, self-cleaning swimming space that mimics the purity and design of a natural body of water. Instead of chlorine, it uses a filtration zone filled with aquatic plants and biofilters to maintain clean, healthy water.
Natural pools are divided into two zones: the swimming area and the regeneration zone, working in harmony to keep the water crystal clear without harming the environment or your skin.
Initial Consultation — We assess your space and vision.
Planting & Commissioning — We balance the ecosystem and ensure clean, swimmable water.
Design Phase — You receive detailed plans, renderings, and a full quote.
Aftercare — Optional plans for seasonal or full-service maintenance.
Construction — We manage every step with precision and care.
We design and build fully customized natural swimming pools throughout Portugal. Our services include natural pools for swimming, for fish, ornamental ponds and more…
Every project starts with a detailed consultation, ecological assessment, and design concept. We create site-specific 2D and 3D visuals so you can see your natural pool before we build it.
Want to convert a traditional chlorine pool into a natural one? We can retrofit and upgrade existing structures into bio-balanced swimming systems.
From excavation and lining to the technical biofiltration systems and planting, our experienced team handles every step. We use high-grade EPDM liners, natural stone, and native aquatic plants.
We offer seasonal and year-round aftercare packages to keep your natural pool looking pristine and functioning perfectly.
We don’t just build pools — we build beautiful environments. Surround your natural pool with terraces, gardens, pergolas, or stone walls that blend function with elegance.
Luxury residences & villas
Boutique hotels & eco-lodges
Rural estates & agrotourism properties
Urban homes seeking sustainable solutions
We work closely with architects, landscapers, and homeowners to integrate natural pools into the surrounding environment.
Chemical-Free Swimming — No chlorine, no irritation
Eco-Friendly — A living ecosystem that supports biodiversity
Year-Round Beauty — Functions as a pond or water feature even when not used for swimming
Blends with Nature — Fits seamlessly into Mediterranean and modern Portuguese landscapes
Low Operational Costs — Reduced energy and maintenance expenses long-term
Your dream natural pool starts here. Contact us for a consultation and no-obligation estimate.
Natural swimming pools use biological filtration instead of chemicals like chlorine. They’re designed with regeneration zones filled with aquatic plants that clean the water naturally. These eco-friendly pools blend with the landscape, are safe for the skin, and offer a more sustainable and natural swimming experience.
A natural swimming pool is also known as a biological pool or swimming pond. These pools rely on plant-based filtration systems instead of chemicals. The result is a cleaner, healthier swimming environment that mimics natural bodies of water and supports biodiversity.
The healthiest type of pool is a natural or biological pool. These pools avoid harsh chemicals and use plants and natural filtration systems to purify the water. They are gentler on the skin, eyes, and environment, making them ideal for eco-conscious swimmers.
Lisboa | Cascais | Comporta | Algarve | Porto | Sintra | Braga | Setúbal | Alentejo | and more.
Have questions? Call us at +351 934 679 342 or send an email to geral@oasisbiosistema.com / comercial@oasisbiosistema.com
