I'm hoping to do a trip up to New England this summer. I know there's a few threads on the zoos themselves, but I didn't see any mention of this topic - which places can safely be combined in one day? I'd be driving from Delaware, so will probably hit Newport Aquarium on my way up and Beardsley on my way back. I would be staying with a relative in Providence, RI. My intention is to visit as many as possible, but I'd like to save some driving in between and combine what I can.