He recently purchased 387 acres on one of the San Juan Islands that is the site of Camp Nor'Wester, a venerated children's summer retreat.
Property on the San Juan Islands is very expensive.  
mnli hypothesis: Property on the San Juan Islands is very expensive.   premise: He recently purchased 387 acres on one of the San Juan Islands that is the site of Camp Nor'Wester, a venerated children's summer retreat.