It's free. It's up to you if you want to give any donations.
True, it's free, but family membership coupon on Groupon includes parking for Free and all the members events. To me it's worth the membership when they have Sea Scare event in October and all the members kids get to go in an hour before the public gets to go in after about an hour and my kid running around she's seen everything so I spring for the $65 family membership. Also if you want to make an afternoon of it they have a red car that drives by for free during the summer and I'll bring you on down to the ports of call area and that's free too.
They request a 5 dollar donation
They really request $5
Its free
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