THE popular Coastrek hiking challenge is set to return to the Mornington Peninsula in May with organisers urging participants to register before entries close on 12 April. The national event, which blends fitness, fundraising and community, will see thousands of trekkers take to coastal trails across the peninsula, raising funds for mental health organisation Beyond Blue. Now in its 17th year, Coastrek has grown into one of Australia’s largest team-based hiking fundraisers.