We are very familiar with Biarritz's St. Charles neighborhood, so Helene's flat was absolutely perfect for our family vacation. We were a family of 5: 4 adults and 1 toddler. With 3 bedrooms, this worked out perfectly! The main part of the flat has 2 bedrooms and a bathroom and then there's a separate, but attached studio apartment with another bathroom! Wow! The building is also spectacular with our own parking space. The wifi was fast and reliable, which is important to us. We walked to the beach everyday with our daughter and picked up food from local shops. It was a perfect family vacation!