The purchase puts IHG squarely in the lead among mainstream hotel companies looking to capitalize on the booming demand for authentic and sustainable wellness travel.

The deal adds Six Senses' hotel and spa operations to IHG's high-end portfolio. Six Senses manages 16 hotels and resorts under the Six Senses and Evason brands as well as 37 spas under the Six Senses and LivNordic brands. The company also provides spa consultancy services.