Waterfall Pond Supply's Western Washington Retail Super Center is conveniently located right on I-5, it's the big red barn we've converted into our public retail store. We have everything you need for building your own water feature, waterfall or pond, and everything to help you plan if you're looking to have seasoned professionals install one for you. Come by the store. We have many indoor and outdoor displays to inspire you. We're an easy drive right between Seattle, Anacortes, and Bellingham. Just take exit 221 off I5 in Mount Vernon (the Conway exit).