The newly expanded Inside Spa at the Pendle Wavelengths leisure centre in Nelson, Lancashire, has opened to the public.

The £220,000 upgrade was funded and completed in partnership between Pendle Leisure Trust (PLT) and Alliance Leisure and work included the addition of four new treatment rooms, a manicure and pedicure bar in the reception area and a large relaxation area for group bookings.

Existing facilities at the spa include a sauna and heat therapy and salt inhalation rooms.

The work was part of a wider £3m redevelopment of Pendle Wavelengths, which was one of the UK's first public sector spas when it opened in 2007.

PLT chief executive officer Phil Storey said the decision to expand the spa was made to the facility's popularity.

"The spa is now in its fourth year of operation and the demand is incredible," he said.

"Between 2008-09 and 2009-10, we tracked 30 per cent increase in public spend within our facilities. This financial year alone we have already witnessed a further 18 per cent growth."