I just got back from our trip to Kona this morning. With all the news coming out of BI I was very apprehensive about going and I know others are also feeling the same way so I thought I would leave our experiences here. As a disclaimer let me say that these are solely my experiences and I would defer to the DEs whenever possible.
The vog was noticeable at our location at Kahaluu Beach Villas. Some mornings start out very promising, with partly cloudy skies and some sun, but typically they would give away to moderate to heavy fog in the afternoon. The only sunset we really experienced was on the was to the Kona airport for our departing flight. That said, myself nor my family of 5 felt no ill effects despite snorkeling, hiking or fishing everyday. Again, just our experience.
Overall other than the vog my family didnt have out vacation impacted negatively. We had a tremendous time and were happy we did not cancel. My kids made an effort to donate to relief efforts whenever they saw collections around town.