Half Moon Bay is a wonderful place to visit and Mary-Anne's is a great place to stay. It's just a few houses from the beach but close to town and food/gas/restaurants. The neighborhood is very safe and very quiet.
The house is perfect for something like a family reunion. Big, open space, back yard, easy on street parking.
There are very thoughtful touches throughout the house.
I really can't think of a better place to stay!