The public portion is relatively small as Regence plage takes up some space. Nevertheless it's right next to a bus stop and there are some eating options, which is convenient.
The Radisson Blu is across the street and has a lovely rooftop terrace with a swimming pool.
The Sainte Helene stop is on the Promenade at the beach entrance. You'll find buses 8, 11, 52, 59, 60, 70, 94, 98, 200, 400, 500. See more on buses in Nice.
You can lunch at Regence Plage of course or pick up drinks, bread, snacks and sandwich material across the street at the Elf service station. On the other side of the service station on ave de la Californie, Chez Vero is a small café and there's Express, a small supermarket.
There's no WC on the beach but there is a toilet in the Elf service station across the street.
There's limited free parking available on the Promenade des Anglais and paid, underground parking available at the Radisson Blu hotel across the street.
There are no particular safety issues with this beach and there is a lifeguard on duty daily from mid-June to mid-September. See more about beaches with lifeguards.