Batten was said to have bought "Kaz II" a year before and sailed it a couple of times since then. The Tunsteads were not nautical novices either, since they sailed together from the time they were 18 years old, and even worked in the radio rooms of the Volunteer Sea Rescue. The last known contact of the family members with any of the crew was made one-and-a-half hours after it left port, when one crew member was contacted by his wife. Volunteer radio operator Ivan Ormes recorded that "Kaz II" radioed in at 6:45 P.M. on 15 April, the evening of their departure, giving its position as George Point. This is the last known contact with "Kaz II". Grey says that it should have taken them only 2 hours to go to George Point and that it is unclear what took them so long to arrive there. One explanation is that they were just fishing the whole day. But another explanation is that they had problems with their GPS, since they already tried to set off on 14 April, but were forced to return because of the non-functional GPS. That incident was because of a user error and it was easily fixed, so "Kaz II" set off early the next day. Other hypotheses include that the boat became stuck on a sandbar near George Point, where the boat's last radio message was made. When the men jumped overboard to push it free, a gust of wind blew and the boat drifted away, leaving them stranded. This would explain why towels were left out on the deck. Another hypothesis is that one crew member may have been washed over by a freak wave and that the others were lost trying to rescue him.