Natural Swimming Pond Project – Cornwall
This project transformed a previously excavated site into a large natural swimming pond — designed to combine the clarity and enjoyment of swimming with the ecological benefits of a thriving wildlife habitat.
The aim was to create a pond that feels natural and inviting, yet delivers reliable water quality through carefully balanced design. By integrating regeneration zones planted with reeds and lilies, supported by a discreet filtration system, the water will remain clear for swimming while providing a sanctuary for wildlife.
Step 1: Shaping the Pond
We began by carefully re-grading the excavation with a digger, forming shelves and depth variations to allow for both swimming areas and shallow planting zones. Dedicated pads were created for the bridge and pontoon to provide easy access into the water.
(And yes — the dogs insisted on helping with site supervision!)
Step 2: Lining and Base Preparation
Once the shape was finalised, we installed a protective underlay followed by a robust EPDM liner. This ensures durability and a watertight seal. Gravel and stonework were then used to create retaining walls and to define the planted regeneration zones.
Step 3: Planting and Filtration
The regeneration areas were filled with washed gravel and aquatic plants. Over time, these will mature to provide natural biological filtration, oxygenation, and shading.
To support water quality in the early years while plants establish, we integrated a professional filtration system:
- 2 x Evolution Aqua K1 Micro Bead Filters
- 2 x Evolution Aqua Vari pumps
- 1 x Evolution Aqua Evo UV unit
Together, this setup ensures effective solid waste removal and crystal-clear swimming conditions.
Step 4: Finishing Touches
Edging stone was laid to blend the pond into its surroundings, creating wildlife-friendly access points and a natural aesthetic. As the water plants grow and spread, the pond will look increasingly like a natural lake — while still offering the clarity and safety of a swimming pool.
The Result
The finished pond offers:
- A dedicated swimming stretch, perfect for exercise and relaxation.
- Regeneration zones that will establish into lush reed beds and water lilies.
- A balanced, chemical-free ecosystem that supports both people and wildlife.
This dual-purpose design means the pond is not only a beautiful landscape feature but also a living, natural swimming pool.
