By car
State Highway 1 runs from Picton south to Blenheim 20 minutes, Seddon 40 minutes from Picton, Kaikoura 2 hours and Christchurch 4 1/2 hours. Travel to Nelson is either via State Highway 6 from Blenheim 1 1/2 hours or from Picton via the scenic and windy Queen Charlotte Drive. Travel to the West Coast is from Renwick via St Arnaud 1 1/4 hours.
By bus
Buses (http://www.intercitycoach...) and Shuttle Buses (http://www.atomictravel.co.nz) (http://www.kahurangi.co.nz) run Picton - Christchurch and Picton - Blenheim - Nelson. Nelson Lakes Shuttles (http://www.nelsonlakesshu...) specialise in providing transport for trampers, hikers, climbers, mountain bikers and skiers. They run on demand and scheduled services to St Arnaud, Nelson Lakes National Park, Kahurangi National Park, the Richmond Ranges as well as other tramping destinations further afield.
By ship
Ferries which link the North and South Islands travel between from Wellington to Picton. The ferry journey takes 3 (http://www.interislander....) to 3 1/2 hours (http://www.bluebridge.co.nz), the southern portion of which is through the Marlborough Sounds. The ferries take both vehicles and passengers.
By train
The TranzCoastal (http://www.tranzscenic.co.nz/) stops in Blenheim, Picton, Seddon and Kaikoura. A fantastic way to see the Kaikoura coast and Marlborough.