Bubbling boulders can be installed in tight spaces, if necessary. These water features serve as excellent focal points near walkways, patios, or decks. The water is pumped through a drilled hole called a “blow hole” and rolls down the sides of the boulder. Bubbling boulders are virtually maintenance-free. The boulders are real and come in all shapes, sizes (100 to 2,000 pounds), and colors. Most installations can be performed in one day!