The U.S. shipbuilding industry has not been too successful in the cruise market, but one American builder has found a comfortable niche in the trade, not only building ships, but marketing and operating them as well. The "ships" are relatively small but they are well known in the U.S. and Canadian tourism markets and carry a high number of repeat passengers. Captain Luther H. Blount, 82, considered the father of adventure cruising, is also the founder of American Canadian Caribbean Line (ACCL), a cruise line that probably enjoys the highest repeat passenger rate in the entire cruise industry. Blount established Blount Industries shipyard in 1949 after building a small catamaran out of old oil drums for the local oyster trade.