Beach House Help

Hello all. My sister is getting married very casually this summer and they have decided to get married on the beach. I think I sort of volunteered to help out with the planning of the thing and putting all the things together and we're trying to figure out what all our options are. I thought that the best way to maybe do this would be to rent a beach house for the whole family (the wedding is probably only going to be family) and stay for the weekend. Does anyone know of any great beach houses that are reasonably priced, close to the beach and would sleep comfortably...8 adults and 2 children? (The babies probably don't need to be counted since they don't require a bed.) It would also be great if it was something nice looking..that way if we do plan ahead and it ends up raining we could do it inside in an emergency. Any help would be great. Thanks!