Another cool feature would be a temporal zoom - let me see that data juxtaposed over different months or weeks (I imagine it likely that the busy/free days vary depending on the season); conversely, it would be useful to be able to zoom in to the hour for specific days (best hours to visit today). That would help either plan vacation visit agendas, or determine an intra-day itinerary.
Another cool feature would be a temporal zoom - let me see that data juxtaposed over different months or weeks (I imagine it likely that the busy/free days vary depending on the season); conversely, it would be useful to be able to zoom in to the hour for specific days (best hours to visit today). That would help either plan vacation visit agendas, or determine an intra-day itinerary.