There's 'Paradise' in Blackpool. It's a swinger hotel. We never stayed as parenting entertainment cropped up, but I did have a great chat with the owner over the phone when enquiring about staying there earlier this year.

Just out of interest. Is anyone going to the Expo Erotica at the NEC on 28th and 29th Sept?

Yes, we're just off the M62 corridor, we've ventured to Quest in Leeds and really liked it.

There are some fun people out there (and here).