All course participants involved in a collision between an Outward Bound cutter and a commercial vessel have been discharged from hospital.
"We are pleased and relieved to advise that none of the students have sustained any serious injuries," the organisation said in a statement.
"Six students were originally taken to Wairau Hospital for observation yesterday, while two others were flown to Wellington Hospital for assessment. All but one of the course participants were released yesterday, with the remaining person discharged this morning."
A boat collided with the Outward Bound vessel in the Marlborough Sounds yesterday afternoon. The seven metre cutter, with 11 students on board, was near Wedge Point in Queen Charlotte Sound when it was hit by a Dolphin Watch Ecotour boat.
Outward Bound said the students saw the boat approaching and tried unsuccessfully to alert its skipper that they were on a collision course.
The Outward Bound vessel was run down and subsequently sank.
Maritime New Zealand is investigating.
A spokesperson for Dolphin Watch said yesterday that the captain had been stood down.
Outward Bound said all students affected by the incident have been offered counselling.