I always have a hip pack that also holds a water bottle . These I can find at places like REI or even sometimes at places like target . It has space for my phone , credit cards and of course the water bottle . I personally cannot drink water in FL . I get sick , it is not just FL . If I even travel to a different water source in my own state I get sick headache , disoriented . So I bought a life straw bottle and that seems to help me drink local water . I still get the filtered water from the soda machine and put that in the life straw bottle . Sunblock ! I really like ALBA spray sun block you can get non spray too . It is reef safe and does not feel icky and smells good too . An assortment of medicine . Everything from advil to pepto , flu , sore throat and sleep aids like valerian . When exposed to lots of people and different schedules , your body can not feel its best . medicine is really expensive when traveling so bring some with you . New skin put it on blisters or on skin that is prone to blisters . Sketchers Go Walk 3 or 4 best shoe for the parks .