Lancelin Sand Dunes are a great place to experience and adventure on a white sand desert.
You can go sandboarding down massive 45 degree angle dunes and it's so cool to do! We spent a couple hours there and had so much fun. You can hire the board just at the carpark.
You can also go four-wheel driving but will need to ask information on the tracks at the visitor centre in town or at the carpark.
Photo tip: sunrise is definitely the best time for photos and for flying the drone as it's not as windy and the light is great.