 He chose a well-watered block in the Valley of Lagoons and set up a partnership with brothers Arthur and Walter Scott and Robert Herbert in 1863.In 1864 Dalrymple and Arthur Scott travelled to the area and blazed a trail from what was to be the port of Cardwell to the Valley of Lagoons.The Scott brothers ran the property and soon afterwards Dalrymple relinquished his interest in the run to enter politics.