Plage des Lays is an open Atlantic beach near La Barre-de-Monts, reached on foot through dune paths. Visitors listed it for naturist use in a reported designated section, while swimwear is generally expected outside that area. There is no entry fee indicated, and public beach access is generally free. The beach is generally accessible throughout the day, with visits often lasting a few hours depending on weather and supplies carried. Morning and late afternoon generally offer milder sun and lighter use, which can help with route finding, setting up, and avoiding the strongest midday exposure. The surface is sand, open and exposed with little natural shade. Sun protection is important, as shelter on the open sand is limited. Atlantic water changes with waves, wind and temperature by season, so conditions should be assessed on arrival. Sea conditions can vary and supervision is not assured. Lifeguard coverage for the naturist section is not confirmed, so cautious personal judgment matters. There are no food or drink services directly on the beach, and toilets and showers are not confirmed there. Bring water, food, sun protection, and a means to carry waste out. Parking is expected near dune access points, followed by a short walk to the sand. No direct public transport is confirmed, so a private vehicle is generally needed. Dog rules are not confirmed, and restrictions may apply during summer. From June to September conditions are warmest and busiest, while cooler and windier weather is likely outside summer. Carry everything needed for the full stay, as returning to the car takes time. Check local signs on arrival for current guidance.