Federal regulators that investigated the fatal capsizing of a whale watching boat off Tofino are making three recommendations aimed at preventing a similar disaster. The Transportation Safety Board concludes a large, breaking wave hit the Leviathan II in October 2015. Six passengers died after the boat overturned. It says search and rescue authorities weren’t aware of the capsizing for 45 minutes because the crew didn’t have time to transmit a distress call. Recommendations include that all commercial passenger vessels operating beyond sheltered waters carry emergency radio beacons that transmit their positions and that they adopt risk-management processes that identify hazards — such as areas known to have such breaking waves.