Can any one help with ideas, I have called the two dog friendly B&B's that I could find within reach of Grafham, but they are both full.

Apart from camping, any ideas how we could accomodate ourselves and the puppy?

1)    Put the mutt in kennels
2)    Dress the mutt up as a Laser sailor and tell them it'll behave itself as long as they  keep it wet
3)    When they tell you they're full say "Well I'm Fuller so there, now let me stay"
4)    Take 3 wise men, a virgin and a baby and stay in a stable

Hope these help

Try splashing some cash, and going to a pore expensive hotel.
Leave the puppy with someone else.
Let somebody else sail with Natt who will tow the boat.
Dont go

Sleep in the car.
Dont take the dog with you 
Go home and come back

Set things up so the puppy can sleep in the car?  Large dog cage, untippable water bowl, waterproof boot liner.

Have the dog put down they don't mix with boats

Thats really harsh.

If we leave him in the car he will just bark and whine, as he is still quite young.

Give me chambulls so i can sail :D personally i think thats the best yet :p

You know your always welcome to crew me mark :P