You might want to play some rounds at Lobs Minigolf, located 1.2 mi (2 km) from central Castell-Platja d'Aro. Hotels.com travelers also say the area is relaxing and has lots of nice beaches. If Lobs Minigolf doesn't quite scratch your golfing itch, Golf Club d'Aro, and Costa Brava Golf Club are also nearby.
If thrills are what you're after, head to PPS Park, located 1.4 mi (2.2 km) from central Castell-Platja d'Aro. If you have fun at PPS Park, you'll love Camino de Ronda and Lobs Minigolf, both located nearby.