The list of Naturist Bars/Restaurants found on the bottom left of this map should help you: https://www.google.com/maps/d/viewer?mid=1Jh6m3NQhppCNdgybdA6R489YfOgQAkot&ll=37.22436042913941%2C-1.8033692695739774&z=16
Only the bars and restaurants that welcome Naturists are on this list.