Nightlife:

Piazza delle Erbe & Giardini Luzzati

Piazza Lavagna

Canneto il lungo, upper portion with street food spots (during lunch)

Porto Antico

Areas where you can hang out

Isola delle Chiatte (Island of Barges), a floating piazza in the porto antico at the end of Ponte Spinola (beyond the Aquarium) with benches for people to sit and enjoy the port views

Arena del Mare, past the Magazzini del Cotone (which has a cineplex)