@MrVulcan I went on a spa day with mine - I covered the sensor with two large ordinary waterproof plasters, and I was massaged, and I swam and swam and jacuzzied and steamed and saunad. Didn't go in a flotation tank with it but wow, that sounds fab!
I didn't draw the massage therapist's attention to the plaster and what was under it. She didn't bat an eyelid. The sensor survived the experience although I have to say out of all of my sensors that one was by far the easiest to remove (the oil made the sticky less sticky).
I had my spa visit on the Thursday and started my next sensor on the Sunday, and it was absolutely fine for those couple of days after the spa.
To be honest I would probably want to schedule any spa-ing or massaging nearer to the end of the 14-day sensor life rather than the beginning (I don't like to be without a sensor, and can't afford to waste one!), but that said, I was happily surprised with how well it stood up to the pummelling and all of those hours steaming and swimming!
Enjoy the day!
