t’s not much to look at from the outside, hidden as it is in its modern building on a side street just off Wellfleet’s picturesque main drag, but the Blue Heron Gallery makes up for this on the inside with a large and spellbinding selection of contemporary American art in mediums including acrylic, pastel, watercolor, and photography shown in a bright, welcoming, and relaxed two-level gallery that goes out of its way to make the experience of browsing unintimidating—exactly the opposite of what many other galleries seem designed to do.