Bettye, there is no charge for using the Clayton. They do have memberships (nor or less used as donations & tax deductible) but you can go there almost anytime including the week-end @ no charge. It is a good way from where I live WSW Houston (Hwy.6) & Richmond area @ West Oaks) so when I go - - I try to make at least a half-day or more. Maybe we could meet there sometime.... Ginny