Florida parks Trainers

Spent 4 weeks last August in Orlando wearing Merrell Kahuna III sandals. Miles better than trainers in the baking heat.

Adidas Ultraboost are incredibly comfortable.

Another vote for Merrell's Kahuna III - super comfy & brilliant in warm/hot weather.

The shoe that is best is the shoe that fits. I like Sketchers but it's largely due to the fit. The more something rubs, the more it will cause blisters. Breathable cotton socks are also a must if not wearing sandals.

Take a pack of blister plasters, take your shoes and socks off as soon as you get back to a hotel room each evening. If you plan on doing waterparks, pack a pair of swim-shoes, that ground gets burning hot (they spray the paths with water but you'll still get the odd hot patch).

If you do Bluto's Bilge rat barges, rest your feet well above the metal footrests. That way your feet only get slightly splashed and you can laugh at everyone else getting completely waterlogged shoes.

Just an FYI, my record last time at Orlando was 22km in a day (Halloween horror nights at Universal, did every maze in a single night, so much walking...) but hit 15km at a few parks (Epcot in particular has a lot of walking). Plan rests during the day (and rest days) accordingly. (edited)

The Mrs and I had OnCloud 5's kids had cheap Fila etc.

Plenty of places to rest your feet

Crocs