The Panacea at St Mellons ​

Spa facilities

  • Swimming Pool
  • Hot Tub
  • Sauna
  • Steam Room
  • Relaxation Room

At a glance

  • Shopping


    A 15-minute drive into Cardiff means that retail therapy is practically on your doorstep!

  • Leisure break

    Leisure Venue

    The Panacea offers a range of facilities and treatments, but is not a specialised spa location.

  • Pre natal


    The Panacea offers a range of treatments for mums-to-be.

  • Location

    Convenient Location

    The Panacea is within easy reach of Cardiff and Newport.

  • Hen friendly

    Hen parties

    Thanks to beautiful Thalgo treatments and facilities the spa welcomes hen parties and brides to be.

  • Scenery

    Scenic Location

    The hotel is set amongst seven acres of gardens.


The Panacea St Mellons Hotel, Castleton, Cardiff, Wales,
Cardiff CF3 2XR

Spa & Leisure

The Panacea provides guests with a complete experience that includes an array of leisure and relaxation opportunities set against a backdrop of gardens and apple trees outside, all of which adds to the sense of escapism. So in addition to the squash courts, gym, pool, Jacuzzi, sauna, steam room, and relaxation area, the health spa has a number of treatment rooms as well, offering facials, massages, manicures and pedicures, courtesy of the Thalgo brand.

Hotel & Accommodation

Midway between Cardiff and Newport, St Mellons Hotel is a converted country house surrounded by seven acres of landscaped gardens. With 41 rooms and suites including family rooms, the classic exterior is in gentle contrast to the contemporary but sympathetic design inside. Although it is within easy reach of the cities if you wish to venture out for the evening, the Llanarthen Restaurant provides a menu of English and Welsh culinary favourites to be enjoyed with a view of the grounds.