Any experiences of Wibbit party

[Notagoodtime]

Ds is invited to a birthday party at a Wibbit. He is 10. It states that he must be able to swim with a buoyancy aid for 50m ( which he can just about manage) but can probably only swim 25 m unaided. He really wants to go. He will be wearing wetsuit and buoyancy aid. DH thinks he will love it but it looks quite adventurous and I worry about safety. Anyone been to a Wibbit?

Will is be inside on a pool or outside on a lake?

Sorry on a lake

In that case, I would only let my DC go if they were confident swimming in deep water unaided.