American Cristie Kerr took a three-shot lead after the first day of the Ladies Open de France.
Kerr carded an eight-under-par 62 first round at Golf de Chantaco in Saint-Jean-de-Luz.
Wentworth's Annabel Dimmock was in a six-way share of second place after six birdies and a bogey in her 65.
All 78 competitors were asked to dress in white, the official colour for lung cancer awareness, and to donate €5 per birdie for the first two rounds of the tournament with the proceeds to be donated to ARTIC, a charity close to the late Ladies European Tour professional Cassandra Kirkland, who died from cancer in April.