I have the cleos - this color and white and celery. They are so comfy and not too croc looking. I can't bring myself to get the traditional ones.
http://shop.crocs.com/pc-110-4-cleo...=41p&subsectionname=footwear§ion=products
I haven't worn them to the parks but I have done several 5+hr trips to the Bronx Zoo and my feet felt great. I got my at shoebuy w/discounts and free shipping.
Just a warning - They run SMALL! I have size 7.5 loafers on now, wear and 8 in sneakers and a 9 in the cleo sandals.