As much as 10 feet (3 meters) of tide covers the beach and buries Explorer each day. Photo Credit: Lance Milbrand

Jim Delgado makes notes off Explorer's bow. Photo Credit: Lance Milbrand

Jim Delgado makes notes off Explorer'€™s bow. Photo Credit: Lance Milbrand

The Waitt expedition team compares notes in the water off Explorer's stern. Photo Credit: Lance Milbrand

Fritz Hanselmann and Jim Delgado examine the hull. Photo Credit: Lance Milbrand

Jim Delgado points out features of Explorer's construction to Fritz Hanselmann. Photo Credit: Lance Milbrand

The Waitt expedition team prepares to climb inside Explorer. Photo Credit: Lance Milbrand

Fritz Hanselmann, Jim Delgado and John McKay atop Explorer. Photo Credit: Lance Milbrand

Jim Delgado talks via dive radio to Mike Fletcher while The Sea Hunters explore the wreck of the British gunboat HMS Doterel, which exploded and sank off Punta Arenas, Chile in 1881. This recent (January 2005 adventure) was The Sea Hunter's southernmost adventure to date, at the tip of South America in the Straits of Magellan. It was also the first show filmed in the fifth season of The Sea Hunters.

Jim Delgado returns to the dive boat after diving on Russalka.

Principal Investigators Jim Delgado and Fritz Hanselmann at Fort San Lorenzo. Photo Credit: Lance Milbrand

INA President Jim Delgado and INA Chairman Donald Geddes. Photo Credit: Lance Milbrand

Archaeologist Jim Delgado organizes land survey with the Waitt expedition team. Photo Credit: Lance Milbrand

The Waitt expedition team examines a dugout canoe left on the banks of the river. Photo Credit: Lance Milbrand

The Castillo’s promontory looms on the opposite shore from the site of Yankee Chagres, as the Waitt expedition team meets below. Photo Credit: Lance Milbrand

Jim Delgado takes a GPS reading for a concrete mooring block for a WWII pontoon bridge. Photo Credit: Lance Milbrand