Millennium Spa & Wellness

Millennium Spa & Wellness sits inside the Grand Hotel Millennium on Vitosha Boulevard in Sofia. It's a hotel spa built around private suites rather than a walk-in day-pass setup, so treatments here are booked in advance and tend toward the upscale end of the price range.

The menu centers on a signature face-and-body treatment called Maximum Detox, developed with cosmetic partners Anne Semonin and Forlle'd, aimed at reducing fluid retention and activating lymphatic drainage. Guests can also use an Aqua and Thermal area, loosely themed around the Ayurvedic five elements, though access to that area is restricted to two windows during the day: 10:00-13:00 and 16:00-18:00.

Three private spa suites are available for those who want a treatment away from shared facilities, along with a relaxation lounge and the thermal pool. The spa operates daily from 10:00 to 20:00, with treatment bookings generally running 11:00 to 19:00.

This is strictly an adults-oriented space: the minimum age is 16, and younger visitors are not permitted inside without a guardian, even then only during the specified Aqua area hours. Since there's no day-pass option, anyone wanting to visit needs to book a treatment or suite in advance rather than dropping in. Contact details for booking are the spa's phone line or email through the hotel.