I used to wear Birkenstocks at the parks and they were great for the most part, but occasionally I'd get a blister in a weird spot like the bottom of my foot. Before going on 3 Disney trips last year, I decided to try out some sneakers. I got a pair of Hokas and a pair of On Clouds. I wear the On Clouds for full park days and they're amazing. I wear the Hokas on shorter park days, travel days, etc. I've worn them on hot days in July and super cold days on October and they've been great in any weather.
I originally ordered both, and both were awful (wrong size/style, very uncomfortable). I returned them, went to Nordstrom, and tried different models and sizes. I found the right ones and they've been perfect. Sizing on the Hokas was weird. My husband and I got the same model, and he had to size up .5 and I had to size down .5. You just have to try them on in person. Also the right socks are important. For me, it's the Bombas Women's Lightweight Running Ankle Socks.