Bathyscaphe Trieste
Trieste is a Swiss-designed, Italian-built deep-diving research bathyscaphe, which with its crew of two reached a record maximum depth of about , in the deepest known part of the Earth's oceans, the Challenger Deep, in the Mariana Trench near Guam in the Pacific. On 23 January 1960, Jacques Piccard (son of the boat's designer Auguste Piccard) and US Navy Lieutenant Don Walsh achieved the goal of Project Nekton.
USS Atlanta (CL-51)
In the following years, Denlay and Tysall mounted several larger expeditions to survey "Atlanta", exploring and videoing the wreck in detail to a depth of at the bow. The civil unrest in Solomon Islands from late 1998 prevented further diving around Guadalcanal for several years. However, on the final expedition that year, the then deepest wreck dive by a woman was made by Kevin's wife, Mirja, on "Atlanta". Denlay's last visit to the wreck was in 2002 using a closed circuit rebreather or CCR, the first CCR dive on "Atlanta". Since then, very few dives have been conducted on "Atlanta", although in May 2011 a very experienced deep diving team from "Global Underwater Explorers" successfully videoed the wreck for documentary purposes, the first survey of the wreck since Denlay's expeditions up to 1998.