Swimming at Plage de Cayeux-sur-Mer is generally safe during calm weather, but conditions vary with tides and wind. The beach has lifeguard surveillance during summer months (July-August), typically from early afternoon until early evening. The Somme coast experiences strong currents and sudden drop-offs in certain areas, so always swim in supervised zones and check warning flags. Water temperatures range from 15-18°C in summer. Outside supervised periods, exercise caution and avoid swimming alone, especially during rough seas or foggy conditions common to this northern French coastline.

Late spring through early autumn (May-September) offers the most pleasant weather, with temperatures between 15-22°C and longer daylight hours. July and August are warmest but busiest with French summer holidaymakers. June and September provide milder crowds while still enjoyable for beach walks and sunset viewing. The beach is accessible year-round and attracts visitors even in winter for its dramatic coastal scenery and famous colorful beach cabins. Strong winds can occur throughout the year, so bring windbreakers. Sunset visits are spectacular from spring through autumn when the sun sets over the Channel.

Cayeux-sur-Mer is located approximately 20km northwest of Abbeville. By car from Paris (about 200km), take the A16 motorway toward Abbeville, then follow D940 and D102. Several parking areas are available along the beachfront promenade, with both free and paid options depending on season. Peak summer months may require paid parking (typically €3-5 daily). Public transport is limited; the nearest train station is Noyelles-sur-Mer (7km away), requiring a taxi or bus connection. The beach is easily accessible on foot from the town center and most accommodations.

The beachfront offers several cafés, restaurants, and snack bars serving fresh seafood, crêpes, and traditional French fare, with more options in the town center. Amenities include public restrooms, showers, and changing facilities along the promenade. Accommodation ranges from family-run hotels and vacation rentals to camping sites within walking distance of the beach. Several boulangeries and small supermarkets are available for picnic supplies. During summer, beach vendors sell ice cream and refreshments. The town maintains a traditional seaside resort atmosphere with necessary services for day visitors and longer stays.

Plage de Cayeux-sur-Mer is famous for its 400+ colorful wooden beach cabins (cabines de plage) lining the two-kilometer boardwalk—the longest such collection in northern France. Each privately-owned cabin is painted in unique, vibrant colors creating an iconic rainbow effect that has become the beach's signature feature and a photographer's favorite. These traditional structures date back to the early 20th century resort era. While not available for public rental, they create a distinctive backdrop for beach visits. The cabins are best viewed during low tide or sunset when their colors are most vivid.