Has anyone been to the new Haneda Airport Garden spa? It may not be what OP is looking for, but it would be a good alternative if the TIAT showers are unavailable. I am arriving HND at 5pm from NYC and my partner is arriving the next day (unless we can get a second award seat for one of us on the other person's flight) and I wanted to stay nearby as we will be flying to Hiroshima upon his arrival. I'm staying at the Villa Fontaine, which is next to the spa (and, to my understanding offers a discount). I'll report back in April, but it sure looks like a nice place to get cleaned up and relax after a long flight. https://www.executivetraveller.com/n...t-springs-open