Those that know captain David Dyche III well, say no one knew the waters quite like him.
"He's kind of a jack of all trades. He knows a lot of things about a lot of things. There weren't many things david couldn't do. If he put his mind to it, he could do it."
In 1991, Captain Dyche took a three year trip to the Mediterranean with his wife and his other younger son, Kevin.
This was supposed to be his first trip around-the-world.
"They're just, they're very adventurous. This is what they love doing."
But in the crossing from New Zealand to Australia nearly a month ago, a New Zealand meteorologist received a distressed call from the crew - asking about an approaching storm. That was the last anyone has heard from them.
"I think to myself how could this happen in this day and age? And I just, I can't come up with the answers. And there are so many variables, so many what-ifs, so many what could have gone wrongs."
New Zealand planes have searched over 650,000 square feet of water. Still no sign of the Nina.
"We're still trying to hold on to hope. With each passing day, it gets harder. I have to be realistic to think that she's gone."
As Captain Dyche prepared to set sail from New Zealand to Australia, we're told he did run into some engine troubles, forcing him to replace the engine entirely. But family does not believe that could have been a factor; now they're just looking for some answers.
"it's…well, I do my best to help grandma cope with it. My brother Kevin is dealing with it in his own way and me? I'm still stuck in this feeling of, that it's, it's just too surreal."
Both Captain David and his wife Rosemary worked at the St. Andrew's Marina. To prepare for their around the world trip, Rosemary quit her job to help work on the boat. They also pulled their son David out of school and started homeschooling him to prepare for his on-board education.