The Oasis at Core24

The Oasis is set up outdoors, so you move between a large shared sauna room and a cold plunge pool in the open air, with red light therapy as an extra. The sauna's size makes it more social than a private studio and suits groups who want to sit together.

Non-members can buy a day pass, and regulars can take a monthly membership. Details such as swimwear rules, temperatures and age limits were not published in the sources we found, so check with the front desk before your first visit.