Places to take my brother for his birthday?

Hey everyone,

I’m looking for places to take my younger brother (10M) for his birthday in August. I’m taking his older brother to Universal Studios but he’s still a little young to be out that far without parental supervision so I’m hoping to stay within South Florida. I’m willing to go as far south as the Miami area and about as north as Jupiter or maybe a bit farther. We’ve taken him to the West Palm Zoo and the Cox Science Center and the Fort Lauderdale Museum the past 3 years so I’m hoping to find something new to do with him. The more exciting the better. Thank you so much.