Even though naturism and nudism might be used interchangeably, there is a difference.
Naturism was first coined by Jean Baptiste Luc Planchon with a unique philosophy. Even though today there is no single ideology common to all naturists, in general terms naturism is about enjoying various activities in the birthday suit (aka nude) where one has the opportunity to be his or her most natural self, going back to basics in life, living in harmony with nature, respect for the environment, the self and others, focus on the inner self good health and eating as well as exercise.
Nudism is rather a simple enjoyment or freedom of being nude.
Tantric massage and being in the birthday suit go hand in hand for stirring up and moving around waves of sexual energy preceded to mindful lingam massage.