The Global Wellness Institute has released the third edition of the Guide to Hydrothermal Spa & Wellness Development Standards. The popular book, which has been expanded by 50 pages, is a primer for designing and building thermal experiences and wet areas at commercial properties or in residential homes.

Created for spa owners, operators and consultants as well as designers, architects and builders, the Guide to Hydrothermal Spa & Wellness Development Standards was written to help readers understand these complex areas and guide them as they embark on building a hydrothermal area of any size. It covers everything from project planning to building and construction considerations – including recommended standards and materials – and clearly defines the functions and benefits of all common thermal bathing and wet areas.

“Hydrothermal areas are notoriously difficult to get right — and very costly if they go wrong,” said GWI chair and CEO Susie Ellis. “This guide reflects unprecedented collaboration between key players in the industry who joined together and formed the GWI’s Hydrothermal Initiative, with a mission to elevate industry standards. Members of the Initiative are committed to increasing transparency and awareness about the design and implementation of thermal and wet treatment experiences.”

Don Genders, chair of the GWI Hydrothermal Initiative and CEO of UK-based Design for Leisure, commented: “Our aim is to educate the industry so that whenever hydrothermal areas are designed and built, they not only positively impact the health and wellness of users, but they are also constructed in a way that supports our planet and its precious resources.”

The Guide to Hydrothermal Spa & Wellness Development Standards is available for free download at the GWI website.