The Hardenbergh House, built by Johannes's grandson in the mid 1800's was home to Hardenberghs until the mid 1950's. Originally built as a center-hall colonial, the home was "upgraded" to its present gabled Victorian style around the turn of the century.

Nestled in a forest of cedar and white pine on the northern crest of the Shawangunk Mountains, Sky Lake is a contemplative center for meditation, arts and community.