Bring lots of money...
We bought season passes because we wanted to take our 5 girls during the week when it's not so crowded, but that means it's a school night so we can only stay for a few hours at a time. This is NOT enough time to see/do everything as many times as they want! lol
So, two adults at $35 each, plus 4 children at $25 each (the baby was free) gave us free parking and many free rides to enjoy.
All the games cost extra though, the drinks, cotton candy, etc. are $3 and up, and there are some rides and attractions that you have to pay for even though their web site says "All rides, shows, attractions and parking are FREE with paid admission."
For example, the pony ride is $5 per child. The elephant ride is $5 per child. And the petting zoo is $3 per person just to walk through!
We won't be taking the baby with us next time but took her last week because it was her first time to see Santa. Of course, you can't take photos of the children with Santa - you have to PAY for the photos THEY take...
I guess it isn't bad if you only have one child, but when you have 4 getting on a ride that you have to pay for, that's $20 each time, and that adds up FAST! -- And when I wrote to the email address given on their web site to ask them why they advertise ALL rides etc as being free when they're not, my email bounced back to me as "Service Unavailable"...
On the good side though, the lights really are very pretty! As someone else noted, some of the displays are getting old, but many are still very nice. The girls got to see live deer in a pen and hand coins (silver only) to a monkey. For a dollar each, they also got to feed the elephant a treat.
They rode the ferris wheel, went through a fun house, down a huge spiral slide, plus many other rides all for free. They also enjoyed the elephant show, magic show, and juggler show for free. But those shows start at 8 pm and later, so we were at the park later than we wanted to be. Next time we'll try to make it to the further end of the park to see what rides etc are down there, and we can skip the shows now that we've seen them. Hopefully that will let us get the girls home to bed before so late.
Oh, and one other suggestion; wear comfortable shoes because you'll do a LOT of walking! lol