About the Pool

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Facts & Figures

Jubilee Pool is the largest and most celebrated sea water pool in the UK.

  • It is triangular with the longest side 98m long and 56m width in the widest part.
  • The main pool depths range from approx. 0.9m to 2.25m depending on the tides.
  • The learner pool depth is approx. 0.6m.
  • The geothermal pool depth ranges from approx. 0.85m to 1.35m.
  • The whole pool contains 5 million litres of sea water.
  • Our main and learner pools are not heated, they are usually is 1-2 degrees above sea temperature.
  • It has no mechanical filtration and minimal chemical treatment for a natural sea water bathing experience and a robust cleaning regime to keep it clean and safe.
  • Our geothermal pool has additional UV filtration in place to maintain the water quality in higher temperatures.
  • Our geothermal pool is heated to 30-35 degrees via our own 410m deep geothermal well.
  • The geothermal system operates by extracting warm water from the geothermal well taking heat out of that water using heat pumps and distributing it to the pool via a heat exchanger, before re-injecting the cooler water back into the ground.  
  • This combined system means that the temperature of the pool can be sustained with a very low carbon footprint. It is the first of its kind in the United Kingdom and will act as a showcase for geothermal, low carbon heat supply.
  • Jubilee Pool has a capacity of up to 600* swimmers, depending on lifeguard levels.  The geothermal pool can accommodate up to 50* persons per session.

 

* These are normal capacity levels.  Capacity may be restricted as we continue to socially distance.

GEOTHERMAL POOL

THE BEST IDEAS HAPPEN OVER A PINT……..
The idea of adding a heated section at Jubilee Pool was first mooted back in 2010 by Charlie Nixon (the brother of former Jubilee Pool Director, Martin Nixon) over a pint or two at The Yacht, when they were discussing how often people struggled with the pool’s chilly water temperature. Charlie had just returned from a trip to New Zealand where he had bathed in geothermal pools and his response to the issue was ‘why don’t you just heat it with geothermal energy?’ If only it were that simple eh?!

Martin then took the idea up to Cornwall Council to show the Chief Executive and senior officers (he recalls that he nearly cancelled, as he thought they’d think he was crazy..) and the rest as they say, is history…

Ten years and a £1.8m funding package later (not to mention an incredible amount of work by the Jubilee Pool Directors and staff) the first geothermally heated pool of its kind in the UK is opens to the public on 1st September 2020.

THE PROJECT
Jubilee Pool’s £1.8m investment project is a great demonstration of the power of community. Nearly £540,000 of the funding came from a public share offer resulting in an organisation truly owned by the community with 1400 shareholders of which 970 are local people. The remainder of the funding for the investment came through a mix of loans and grants from Power to Change, Architectural Heritage Fund and Cooperative Community Investment Fund.

The investment project has transformed Jubilee and will enable year round opening. It saw the construction of the new geothermally heated section of the pool, upgraded changing facilities and showers, a new cafe with double the seating capacity and a new multi-purpose community space.

The geothermal well which has made Jubilee Pool’s project a reality was constructed by Geothermal Energy Limited with grant support from the European Regional Development Fund.

HOW IT WORKS
The system operates by extracting warm water from one geothermal well (410m deep – the height of one and a half Eiffel Towers!!), taking heat out of that water using heat pumps and distributing it to the pool via a heat exchanger, before re-injecting the cooler water back into the ground. This combined system means that the temperature of the pool can be sustained with a very low carbon footprint. The initial pool heating results suggest that it’s about 80% geothermal but ultimately all the energy is coming from our geothermal well. We are using the heat pumps to concentrate that energy to the exact temperature required for the pool.

The system is the first of its kind* in the United Kingdom and will act as a showcase for geothermal, low carbon heat supply.

* We’re the first geothermal lido but not the first geothermal bath in the UK – the Romans beat us to it by 2000 years in Bath!

Tides & Cleaning

As with other coastal lidos across the country, Jubilee Pool is designed as a seawater pool with no mechanical filtration and minimal chemical treatment.

The quality of the water is carefully a maintained with a regime of daily water replacement that is timed with the outgoing and incoming tides; and the water in the learner pool is normally replaced daily when a small amount of chlorine is added. This approach means that the water levels in the main pool are continuously changing and access to some areas may occasionally be restricted.

This programme is also supported by a regular drain down (over 5 million litres of water).  Cleaning and refilling is usually completed during fortnightly higher tides, weather and sea conditions permitting.  To allow for these drain downs, and to enable us to carry out weekly deep cleans of the site we will be closed every Monday.  

The quality of the pool water is scientifically tested to ensure we meet the required standards.

Customer Update

Memberships are live!

You can now become a member of Jubilee Pool. get your summer season pass here!

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