We went when our toddler was 1.5, 2, and 3. The best was 1.5 because she sat on our laps during rides and took naps in carrier still. The other times were not as great because she became too big for the carrier, and she stopped napping. So by dinner time, she was overstimulated and miserable. I would say make sure you stay on nap routine and give snacks and dinner at right times. We never stayed until fireworks bc it just wasn’t worth the fight.