Leikkipuisto Tuorinniemi is a City of Helsinki playground in Herttoniemenranta near the seafront. The colour scheme is fresh, the surface a soft material rather than tarmac, and the standout features are four trampolines, a steep big slide, climbing frames and a water-play area. The smallest visitors have their own fenced section with a sandbox and baby swings. Right next door is the supervised Tuorinniemi swimming beach, perfect for extending a summer visit, plus an ice-cream kiosk.