We took the ferry to Oak Bluffs on Martha's Vineyard. The tour was about 3 hours long 7 people in a 12 passenger van. They wanted to put in 4 more people which would have made it extremely crowded given that everyone had a camera bag, purse or day pack, plus our rain gear. That would have been very uncomfortable. After al they billed it as a small group tour.
The guide was knowledgeable but there was no time for photography except at maybe 3 stops for bathroom or food breaks. Taking photos through tinted and scratched van windows that don't open doesn't work. Basically we were disappointed with the restrictions of this kind of touring.
After the tour we went back to the Methodist church camp to take photos of the gingerbread cottages which was quite nice