The iconic Swiss hotel Waldhaus Flims Alpine Grand Hotel & Spa has reopened after a four-month renovation, which saw both bedrooms and suites redeveloped, along with a new 2,800sq m (30,139sq ft) spa.

The new spa is part of a CHF40m (US$40m, €36m, £28m) renovation by Hong Kong-based interior design firm Peter Silling & Associates, which aims to maintain the property’s Belle Epoque heritage while enhancing the resort to a luxury alpine hotel.

The 11-treatment-room Waldhaus Spa includes spa beds from Gharieni's MLW series, along with an indoor swimming pool, heated outdoor pool, and a natural swimming pond, along with regional and traditional treatments.

A sauna landscape features various aroma and steam baths, including a glass-encased Finnish sauna with waterfall shower, hammam steam bath, in-ground sauna, Swarovski Physotherm cabins with infra-red beams and a women’s sauna areas.

In the winter, when the pond freezes, an ice hole is made, so guests can combine an icy natural dip with the in-ground sauna. Quiet resting rooms with views of the swimming pond are available, along with a new fitness centre and a private spa suite with its own whirlpool, sauna and massage area.

“We are pleased that in the magnificently updated hotel premises, we have created a place to pursue the renowned tradition of Waldhaus Flims and combine it with incomparable guest services and first-class wellness offerings" said Peter Schoch, managing director of Waldhaus Flims.

The 150-bedroom Waldhaus Flims hotel was acquired by Z Capital Partners– the same company that also owns wellness hotel Carillon Miami Beach – in December 2016.

The renovation included rooms at the Grand Hotel and the Villa Silvana; works at Chalet Belmont will begin in April 2017.