Worlds of Wonder is a combined amusement and water park in Sector 38A, one of the largest in the NCR and the kind of place locals visit primarily to escape Delhi summer heat. The water side has wave pools, slides and a lazy river; the dry side has roller coasters, drop towers and a Ferris wheel with views across Noida. It is loud, hot and busy, but children love it.
The park is part of the Great India Place complex, sharing a sprawling site with one of north India's biggest shopping malls. You can buy combined or separate tickets. Peak season is March to October; the water park is partially closed in winter. Reach it from Noida Sector 18 metro station via a short auto-rickshaw ride.