Tower 4 has been visited by recreational divers who have mostly explored the wreck`s exterior and shallower areas over the years. However, for a dedicated group of technical divers, diving Tower 4 is not a recreational dive. It`s nearly 80 miles offshore in water almost 200 feet deep. The water is very cold, deep and dark. The currents are strong and multi-directional, and the seas are rarely calm. It takes a dedicated individual to come back expedition after expedition, year after year, to endeavor to gather data and to try to ascertain the cause of the Tower`s failure and to try to learn the exact fate of those brave men who died serving their country.

Principle figures involved in the upcoming History Channel`s 1-1/2 hour special presentation on Tower 4. (L to R) Chuck Zimmaro - Tower historian/diver; Don Abbott - Texas Tower Association & whose father, Dave, was lost on Tower 4; Al Giddings - Award winning Hollywood underwater cinematographer; Cdr. Mark Lichtenstein USN (ret.) film team chief safety diver.