The itinerary includes 4 days in Bremer Bay, one just for an orca tour if you're visiting in season.
The first and last days are to drive from Perth to Bremer Bay and vice versa. It's a 5-6 hour drive.
If you don't have 3-4 days for Bremer Bay, consider driving somewhere closer to Perth instead, like Busselton, Yallingup, or Margaret River.
