Planning a vacation for large groups can be challenging, especially if you’re planning a trip for multiple families. That’s why vacation rentals with guest houses are such a great option for large groups. Whether you’re planning a destination wedding, corporate retreat, family reunion, or multi-family vacation, these homes with guest houses are perfect for you! 1. Sandcastle Dunes Sandcastle Dunes is a beautiful six-bedroom vacation home in Watersound that sleeps up to fourteen guests. This home features a guest house that makes it perfect for multi-family or group vacation. Sandcastle