Critics say the breakwater's removal will allow large ocean swells to slam into the basin at the late heiress Doris Duke's former mansion, making it dangerous and unusable.Like many residents who grew up in Oahu’s east side, I have enjoyed swimming and snorkeling for decades in the former boat basin fronting the Shangri La mansion of the late tobacco heiress Doris Duke.I was saddened to find out that the state is applying for permission — because of liability concerns — to take down the historic 140-foot-long breakwater protecting the basin that Duke built in 1937 to moor her two boats.In...…Critics say the breakwater's removal will allow large ocean swells to slam into the basin at the late heiress Doris Duke's former mansion, making it dangerous and unusable.Like many residents who grew up in Oahu’s east side, I have enjoyed swimming and snorkeling for decades in the former boat basin fronting the Shangri La mansion of the late tobacco heiress Doris Duke.I was saddened to find out that the state is applying for permission — because of liability concerns — to take down the historic 140-foot-long breakwater protecting the basin that Duke built in 1937 to moor her two boats.In...WW…