Deal bonus: Get 15% off your next salt therapy session! Soothing: Simply sit back, relax and enjoy the soothing benefits of the sauna, which may include relief from sore muscles and joints, improved circulation and better sleep quality. Location: At Sereniti Salt Retreat, dedicated to creating great sauna therapy experiences. Valid: Mon-Sat 11am-4pm. Sauna therapy: Treat yourself to one, two or three 40-minute infrared sauna session. Newcastle: Conveniently based in the heart of Newcastle upon Tyne city centre. Infrared Sauna Session | Regional | Living Social