These clients had long-enjoyed time spent in their vacation home in New York’s Adirondacks and were fond of swimming in lakes, skiing, nature walks, etc. When they purchased another home in Merrick, Long Island, they decided to renovate it to capture the spirit of their second home in upstate New York.

Creating the outdoor vacation-style aspect of the experience was, of course, a key part of the renovation and they asked us for something quite unique: “a swimming pool that looked like a pond — i.e., made entirely of rocks and not the usual concrete or steel — but filtered and treated chemically like a normal pool.

In designing and building it, our engineers verified the technical aspects throughout the process. This was necessary because creating such an all-rock pool was like fitting puzzle pieces together — only, instead of using cardboard pre-made shapes, we were dealing with 4-5 truckloads of randomly-size Pennsylvania moss rock boulders.

The undertaking involved looking over and measuring each rock before it was fitted in place. Once positioned, in order to ensure the soil pressure wouldn’t push the stones over or knock them down, instead of straight up, we leaned each stone into the grade, tapered upward.

On the bottom of the pool, however, no boulders were used. Here we installed a one-piece black rubber liner to contain the pool water, which feels to the feet much like a vinyl pool.

To continue the natural look, we used boulders to create the four steps leading into the pool as well as into the spa.