See https://backtotherhythm.typepad.com/BSchadow.pdf for more information.

From the artist's website:

Welcome to our website! This is Bruce and Patti Schadow. We have the privilege of traveling the world, doing both photography and video of amazing places aabove and below the water. Our recent travels include such places as the Amazon, Arctic, Antarctic, Costa Rica, Philippines and Mexico. We invite you to travel with us by way of our photographic galleries and videos.