The small coastal community of Augusta is situated overlooking the mouth of the Blackwood River, at the southern end of the Bussell Highway, 320km from Perth. The nearest major centre is Margaret River, which is 50km north of Augusta. The larger centre of Busselton is another 45km north of Margaret River. To the east lie Nannup, Manjimup and Pemberton. The Cape Leeuwin Lighthouse, a few kilometres out of town, is recognised as the point where the Indian and Southern Oceans meet.