Where is Martinborough?
Martinborough is a 75 minute drive from Wellington via SH2, and 15 minutes from Featherston and Greytown. It is a 25 minute drive from Carterton,(via Ponatahi Road) and 40 minute drive from Masterton (via either Ponatahi Road or SH2). (Google maps)
TRANZ METRO rail operates weekend services to Featherston, and north to Masterton. Check with TranzMetro about times, fares, and transfers from Featherston.
Bus companies in Wanganui, Feilding, Hawkes Bay, Palmerston North, Wellington, and Taranaki operate charter services subject to demand. Check with your local company about special buses to the Martinborough Fair days.