Socks and tennis shoes are the pits in the heat and wet. Rain, splash mtn, kali river and all the fountains that will feel so good in August do not mix with socks and shoes AT ALL! Try some good water sandals if you think crocs won't work. Crocs are our shoe of choice for WDW for sure, but not for everyone. Teva dozers and Keen newports are both really cute and on sale at campmor.com (a great website). Good luck and have a great trip.