The highlight of our trip (for most of us anyway) was this helicopter tour. We originally booked a trip on Tuesday, but it was raining too hard on most parts of the island to take off and actually see anything. We used Jack Harter Helicopter Tours, which was nice enough to cancel. Evidently, some tour operators go up rain or shine, even when visibility is poor.
Like I said, this was not everyone's highlight of the trip.
But, it was mine.