Re: WHAT DID YOU DO?
Sam's definitely in for volleyball and also splashing around in the waves. He can swim pretty well in cartoon wolf so feel free to come cavort with him. He'll probably come dance for a little as well but it feels a bit weird in this body so he won't be spending as much time at it as he normally would be.
Laura normally isn't big on swimming - she can and has for missions, but her claws make her hands and feet disproportionately heavy so she doesn't much enjoy being submerged. At some point she'll probably realise that she doesn't actually have that problem right now though and will get a bit deeper out. She'll sit out on the volleyball though, having learned that something physical like that is only going to lead to shenanigans. Hot dogs she's all in for.
Ianto is mostly going to sit near the bonfire drinking whatever they were able to get in a bottle. He's up for chatting and everything, just not super big on bouncing around everywhere.