By Laura Forsyth Stressed-out Londoners are invited to step into a world where state-of-the-art facilities meet expert guidance, creating the perfect environment for rejuvenation. Making a splash is the imminent arrival of wellness experience Sauna and Plunge. Opening its doors this month, visitors can discover the endless benefits of heat, cold, and everything in between. Nestled on Tabernacle Street, Shoreditch this health and wellbeing sanctuary draws inspiration from the tranquil landscapes of Scandinavian fjords, promising a unique fusion of heat and cold therapies alongside an array of w…