Harper is in the riding of North Island-Powell River to promise an extended partnership with the Pacific Salmon Foundation and $15 million to restore and conserve British Columbia estuaries.
He says the investment will help to preserve the lower Harrison River's salmon ecosystem.
On Thursday, the Conservatives held a campaign rally in candidate John Duncan's riding of Courtenay-Alberni, a seat that some in the party are nervous about.
All week, Harper has faced questions about the Mike Duffy trial and how senior staff in the Prime Minister's Office were in the loop on chief of staff Nigel Wright's infamous $90,000 payment to the senator.
Former PMO lawyer Benjamin Perrin told court Wednesday that Ray Novak, now Harper's current chief of staff, was among those who were told of Wright's plan.
Novak continues to travel with the prime minister's campaign caravan, but the party has been studious in keeping him away from reporters.
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