Move over, singing bowls – tuning forks are the main star at Mi Sol Spa in Da Nang, Vietnam

It’s not every day that you encounter a spa with treatment pavilions that resemble airplane hangars. This striking concept, designed by maximalist “starchitect” Bill Bensley, makes an immediate impression with its bold originality. Tucked away on central Vietnam’s Son Tra Peninsula, the InterContinental Danang Sun Peninsula Resort is home to Mi Sol Spa, where turquoise structures are framed by a green lagoon and lush rainforest.
Its concept is more intentional than quirky. A hangar is, after all, a place of stillness – a respite from the bustle of motion, scrambling crowds and frenetic noise.
What distinguishes Mi Sol Spa is its emphasis on sound healing. Every treatment begins and ends with tuning forks; their vibrations and sound waves are applied to the body or activated near the ears. These gentle frequencies help relieve tight muscles and release tension.
“With normal massages alone, you will feel relaxed, but with tuning forks, you’ll feel an even deeper relaxation,” explains spa director Desak Ambarwati. “With all the stress and tension people feel these days, sometimes massages aren’t enough; they need something that can connect directly with the brain to calm it down.”

Paradoxically, these tuning forks are a fast track to slowing down. Placed on key nerve points and joints, such as the sternum and palms, the subtle vibration steadies the heartbeat and calms the nervous system.
Before my Blissful Marma full-body massage began, the warm 136.1 Hz vibration from the tuning fork on my shoulder seeped deep into my muscles, coaxing knots to loosen. Compared with the enveloping, layered tones of Tibetan singing bowls, tuning forks offer a more targeted precision. When the therapist activated the fork near my ears and hair, I felt as though an alien presence hovered around my head – but in a welcoming way, as the deep hum seemed to abduct my frantic thoughts. Who knew such a low vibration could reach the deepest recesses of my mind so quickly?
Beginning a session this way helped to ease me into a receptive state. In contrast, a grounding, 54 Hz vibration awakened me from a pampered stupor and gently returned me to the real world. One can only hope more spas take note (literally) and let the invisible yet deeply felt resonance of tuning forks become a staple of wellness destinations. danang.intercontinental.com
Tuning into the science
Hz (Hertz) measures the frequency of a sound wave: the higher the Hz, the higher the pitch. Human hearing typically ranges from approximately 20 Hz to 20,000 Hz.
136.1 Hz
A deep, low tone believed to restore balance and support healing. Lower vibrations travel through tissue more easily.
81 Hz
Used during tea ceremony treatments, this vibration makes sound visible, creating a mesmerising dance of minuscule ripples across the surface of tea.
54 Hz
The lowest frequency used at the end of sessions. This heavy, earthy tone has a grounding quality that helps cultivate a steady, calm mind.