Here are lists of keywords that trigger the new Local Carousel. I noticed that while there was some overlap between the lists there was also a number of unique words on each list. I assembled them into one list and with some additional research on my part expanded the combined list to over 300 words.
As with all things Google there are obvious trends and always a few oddities. For the most part the phrases do revolve entertainment, recreation and leisure activities.
Here are some:
Family Fishing Trips