(ABC News/Aus) – The search for Del and Craig McEwan has been called off. The couple went missing after their 46-foot catamaran Ohana-Uli sank off the coast of Tanzania in East Africa. Their boat sank in stormy conditions and those conditions hindered the rescue of the couple. The McEwans were experienced circumnavigators having lived on their boat for five years and were headed back to their home in Australia when the accident happened. Read More