Depends upon the style & needs of the ( interior ) house. A beach house is no different than any other house IMO. I live at the beach ( So. Ca. ) , my house has hardwood as do many of my neighbors. Some have travertine. Most have a combo depending upon the room ( e.g., tile in baths, like mine ), hardwood elsewhere or carpet . No one answer.

If sand is present or nearby, I wouldn't recommend wood.....ask me how I know :-)) Wood-look vinyl or tile or some other durable, non-scratchable surface would be my choice.

I guess it depends upon the type of hardwood & finish.. I’ve had hardwood throughout for 18 years & it still looks great even with a surfing teenage son & his friends. Most of my neighbors have the same & yes, there is sand, right outside the yard.

Natural wood can handle grit, but shiny will get scratched up. Tile is a great choice especially in hot humid climates.

There are beautiful vinyl plank options available that have great wood looks but would be much more durable.

I would do tile, especially if sand and sunlight control are an issue.

Porcelain tile in a cool, beachy look

Natural slate or limestone

travertine

european oak in a matte protective finish. nothing shiny or super smooth.