Petty theft is the worst problem you're likely to encounter. As in any tourist hotspot, it's best to remain vigilant in crowded public places such as beaches and train stations.
- Don't bring valuables to the beach, or if you do, never leave them unattended.
- If you're driving through Nice, keep your car doors locked to avoid 'grab and run' petty theft.
- Mauve stinger jellyfish (Pelagia Noctiluca) are common at certain times of year, occurring most frequently in August. If nobody is in the water, this may be the reason; ask around.
- Nice's beaches are pebbly, not sandy. Bring protective footwear.