Anytime really but less busy first thing in the AM on Saturday or Sunday
Mr. Mahoney is spot on. Only thing I would add is to have a good meal beforehand. My wife and I went, nice place. This time of year it might be raining or damp.
Definitely go when the kids are in school. That way you don't have to compete with them for space.
Any time
Typical school hours, up until 5 or so is the best time for less crowds. But anytime is good really. They have maps of the place at the entrance to help you navigate the place.
When kids sre in school isbless busy.
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