Interesting Disney took on wireless charging on their own. Apple supposedly partnered with a 3rd party[1] to bring wireless charging to future iPhones. Of course the scale is different but concept is the same but Disney's approach requires the room to be 'purpose-built'.
Maybe you can make the coil for a phone cheap enough you can just give guests a wireless phone charger they can just stick to their phone and charge it while they walk around the park.
[1] https://www.zacks.com/stock/news/243363/is-apple-aapl-teamin...