Porters sits at the southern end of the Craigieburn Range in Canterbury's high country, 98 kilometres west of Christchurch at an elevation of 1,302 metres. The ski area occupies scree-covered terrain—approximately 80 per cent loose rock—above the Castle Hill Basin, with State Highway 73 running through the valley floor below. Lake Coleridge lies to the southwest, whilst the Torlesse Range defines the basin's eastern edge. The resort occupies conservation land adjacent to Craigieburn Forest Park, with neighbouring club fields including Mount Cheeseman, Broken River and Craigieburn Valley scattered along the range.

Springfield, a small rural town 33 kilometres east via Highway 73, provides the nearest services including petrol and basic supplies. Castle Hill Village sits 17 kilometres from the ski area turnoff, offering limited accommodation in an alpine settlement. Methven lies approximately 75 minutes southeast via Lake Lyndon Road, though this route remains ungritted and sketchy in winter. Christchurch provides full urban amenities 90 to 110 minutes away depending on traffic and conditions. The resort markets itself as Canterbury's closest commercial field to the city, a key selling point for day-trippers.

The access road branches 8 kilometres from Highway 73, with a well-signposted turnoff located roughly 10 kilometres past the summit of Porters Pass when approaching from Christchurch. The unsealed mountain access road climbs 8 kilometres from the highway junction to the base facilities, winding through open terrain without the native beech forests that characterise some neighbouring club fields. Chains are often required, with a complimentary shuttle operating from the chain-fitting area to the ticket office on weekends, holidays and whenever chains are compulsory. The access is considered shorter and less intimidating than many Canterbury ski roads, though still unpaved with no safety barriers.

Christchurch International Airport lies 89 kilometres southeast, roughly 70 to 90 minutes by car depending on conditions. No direct public transport serves the ski area, though commercial shuttle operators run daily services from Christchurch, Methven and Springfield. Arthur's Pass National Park sits 40 kilometres further west along Highway 73, with the West Coast town of Greymouth 180 kilometres away, making Porters a potential stopover for trans-Alpine itineraries. No passenger rail connects to the region, with road access via Highway 73 remaining the sole practical route year-round.