If thrills are what you're after, head to Allou Fun Park, located 0.9 mi (1.5 km) from central Nikaia-Agios Ioannis Rentis. Let yourself be amazed at the temples and museums in the area too. It's also full of great shops and restaurants, so you can spend the afternoon having a wander. If you have fun at Allou Fun Park, you'll love Athens National Garden and Athens Planetarium, both located nearby.