Yes, a black card guest can visit Planet Fitness without being accompanied by the member. One of the advantages of having a Black Card membership is that it grants unlimited guest privileges to its holders. This means that a Black Card member can bring a different guest each time they visit the gym or their registered guest can attend independently if they desire to do so. Whether it's a workout buddy or a family member wanting to exercise solo, the black card guest has the freedom to use the facilities even when the member is not present. This flexibility allows for greater convenience for both members and their guests at Planet Fitness locations nationwide.