America's 100 largest yachts for 2007. Information for America's one hundred biggest megayachts in 2007. Happy Days is one of the largest yachts in America.

By Diane M. Byrne

#72: HAPPY DAYS —164'0"

This Delta's name pays homage to that of a bowsprit-equipped 185-footer built in 1927 and later converted into the patrol boat USS Almandite. There's also a model and photographs of her aboard.

Y: 2006; B: Delta Marine, USA; N: Delta Design Group; H: fiberglass; E: 2/1,300-hp Caterpillars

America's 100 Largest Yachts 2007