honestly, i wouldnt suggest wearing your wallets around your neck. Ive seen plenty of ppl lose it aka it gets hook and something and you dont realize it came off. What makes it worse is that once you leave the park and grab for your ticket to enter the other park, you got nothing, no cards, no ticket, no money... your stuck... Ive actually ran a lot of these wallets up to Lost and Found ASAP, but many times, i have to do it on my breaks to do so... and sometimes it might take hours for your wallet to make it up to Lost and Found... Perhaps wrap it around your belt and into your pocket...
fyi, this is just from experiance....