I Ling,
Hawaii does have Bronchiectasis/MAC but so does a lot of the rest of the country. And I bet MAC is in a lot of shower heads being water sits there. But I wouldn't be afraid of coming to Hawaii. Like I mentioned I always request hot water instead of cold water or bottled water. And if Im close to the soil, mask. I dont seem to have gotten worse. Seem the same for sometime and am due for an MRI and sputum that will indicate my condition. I realize that I have to live with this and am conscience of sputum discharge. Like my ID doctor said, get the sputum out.
I have lived in NYC, SF and LA and I would say with the tradewinds that we get most of the time and the wonderful ocean surrounding us and a mild climate, we are a healthy clean state. Do come and enjoy Hawaii. Hal