We stayed five days in the Beach House with our two active boys, 2 and 4 years and our nanny. The boys loved it! All the toys, books for children, the trampoline and the proximity to a playground and the beach, where we spotted crabs among the rocks.
The house is big with several bedrooms, and we could easily have shared it with another family.
If we ever return to Margaret River, we will certainly first check out if this place is available!