It's free! Photographers who photograph families and people pay a photographer's fee to use the location, but for the general public it's free!
Yeah free some events held there may have a cost.
You can walk around all you want to.
Parking is free, entry is free
The gardens are free to walk around, but parking may be a different story. When we were there we entered from the greenway by bicycle. Plenty to see and there is a children's garden for kids to play in. Events can be held there and that may be what involved fees mentioned by others
It's free
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