Proper footwear: You'll be doing a lot of walking at a theme park, so make sure to wear comfortable, supportive shoes. Sneakers are a good option, but if you're planning on doing a lot of walking, you may want to invest in a pair of hiking boots.
Sunscreen: When possible try to wear long-sleeved shirts, pants, and hats and be sure to apply sunscreen regularly throughout the day.
Rain protection: If there is a chance of rain, be sure to bring a raincoat or umbrella.
Don't forget a hat: Hats are a great way to protect yourself from the sun, especially if you're going to be spending a lot of time outside.
A small backpack: A backpack is a great way to carry your essentials like sunscreen, snacks, and a water bottle.
Avoid wearing expensive jewelry: Theme parks are crowded places and you don't want to risk losing or damaging your valuables.
Wear layers: The weather can change quickly at a theme park, so it's a good idea to wear layers that you can easily add or remove as needed.
Stay hydrated: Drink plenty of water throughout the day, especially if it's hot and sunny.
Consider a fanny pack: A fanny pack is a great way to keep your hands free while you're walking around the park.
Consider a portable phone charger: If you're planning on using your phone a lot, a portable charger is a good way to make sure you don't run out of battery.