I haven't been to Eureka for years so it would be good to get a decent up to date opinion. in fact I think their Open Day is this weekend so if anyone is going perhaps they'd like to let me know how things are these days.
As has been mentioned naturism is an established social activity and it adheres to some rules and regulations. I have been to other clubs where they can be quite vigilant about inappropriate behaviour, so one needs to remember that its quite different to a sex club.