Passages of the Deep features three separate tunnels, all with incredible views. Open Sea houses sharks, rays and schools of anchovy and mackerel; Halibut Flats features halibut, sturgeon, lingcod, flounder and a faux shipwreck; and Orford Reef teems with rockfish, sea stars, anemones, and wolf eels. Depending on the size of your group, you may be spread out throughout the three tunnels. Check out our Passages of the Deep pages to learn more.